% xmobar - a minimalistic status bar About ===== xmobar is a minimalistic, mostly text based, status bar. It was originally designed and implemented by Andrea Rossato to work with [xmonad], but it's actually usable with any window-manager. xmobar was inspired by the [Ion3] status bar, and supports similar features, like dynamic color management, icons, output templates, and extensibility through plugins. This page documents xmobar 0.21 (see [release notes]). [This screenshot] shows xmobar running under [sawfish], with antialiased fonts. And [this one] is my desktop with [xmonad] and two instances of xmobar. [release notes]: http://projects.haskell.org/xmobar/releases.html [xmonad]: http://xmonad.org [Ion3]: http://tuomov.iki.fi/software/ [This screenshot]: http://projects.haskell.org/xmobar/xmobar-sawfish.png [this one]: http://projects.haskell.org/xmobar/xmobar-xmonad.png Bug Reports =========== To submit bug reports you can use the [bug tracker over at Github] or send mail to our [Mailing list]. Note: the old bug tracker at Google code is deprecated. Please use Github's for new bugs. [bug tracker over at Github]: https://github.com/jaor/xmobar/issues Installation ============ ## Using cabal-install Xmobar is available from [Hackage], and you can install it using `cabal-install`: cabal install xmobar See below for a list of optional compilation flags that will enable some optional plugins. For instance, to install xmobar with all the bells and whistles, use: cabal install xmobar --flags="all_extensions" ## From source If you don't have `cabal-install` installed, you can get xmobar's source code in a variety of ways: - From [Hackage]. Just download the latest release from xmobar's hackage page. - From [Github]. You can also obtain a tarball in [Github's downloads page]. You'll find there links to each tagged release. - From the bleeding edge repo. If you prefer to live dangerously, just get the latest and greatest (and buggiest, i guess) using git: git clone git://github.com/jaor/xmobar [Github's downloads page]: https://github.com/jaor/xmobar/downloads If you have cabal installed, you can now use it from within xmobar's source tree: cabal install -fall_extensions Otherwise, run the configure script: runhaskell Setup.lhs configure # To enable UTF-8 support run: runhaskell Setup.lhs configure --flags="with_utf8" # To enable both XFT and UTF-8 support run: runhaskell Setup.lhs configure --flags="with_xft" # To enable all extensions runhaskell Setup.lhs configure --flags="all_extensions" Now you can build the source: runhaskell Setup.lhs build runhaskell Setup.lhs install # possibly to be run as root ## Optional features You can configure xmobar to include some optional plugins and features, which are not compiled by default. To that end, you need to add one or more flags to either the cabal install command or the configure setup step, as shown in the examples above. Extensions need additional libraries (listed below) that will be automatically downloaded and installed if you're using cabal install. Otherwise, you'll need to install them yourself. `with_dbus` : Enables support for DBUS by making xmobar to publish a service on the session bus. Requires the [dbus] package. `with_threaded` : Uses GHC's threaded runtime. Use this option if xmobar enters a high-CPU regime right after starting. `with_utf8` : UTF-8 support. Requires the [utf8-string] package. `with_xft` : Antialiased fonts. Requires the [X11-xft] package. This option automatically enables UTF-8. To use XFT fonts you need to use the `xft:` prefix in the `font` configuration option. For instance: font = "xft:Times New Roman-10:italic" `with_mpd` : Enables support for the [MPD] daemon. Requires the [libmpd] package. `with_mpris` : Enables support for MPRIS v1/v2 protocol. Requires the [dbus] and [text] packages. `with_inotify` : Support for inotify in modern Linux kernels. This option is needed for the MBox and Mail plugins to work. Requires the [hinotify] package. `with_iwlib` : Support for wireless cards. Enables the Wireless plugin. No Haskell library is required, but you will need the [iwlib] C library and headers in your system (e.g., install `libiw-dev` in Debian-based systems). `with_alsa` : Support for ALSA sound cards. Enables the Volume plugin. Requires the [alsa-mixer] package. To install the latter, you'll need the [libasound] C library and headers in your system (e.g., install `libasound2-dev` in Debian-based systems). `with_datezone` : Support for other timezones. Enables the DateZone plugin. Requires [timezone-olson] and [timezone-series] package. `all_extensions` : Enables all the extensions above. Running xmobar ============== You can now run xmobar with: xmobar /path/to/config & or xmobar & if you have the default configuration file saved as `$XDG\_CONFIG\_HOME/xmobar/xmobarrc` (defaulting to `~/.config/xmobar/xmobarrc`), or `~/.xmobarrc`. ## Signal Handling Since 0.14 xmobar reacts to SIGUSR1 and SIGUSR2: - After receiving SIGUSR1 xmobar moves its position to the next screen. - After receiving SIGUSR2 xmobar repositions it self on the current screen. Configuration ============= ## Quick Start See [samples/xmobar.config] for an example. [samples/xmobar.config]: http://github.com/jaor/xmobar/raw/master/samples/xmobar.config For the output template: - `%command%` will execute command and print the output. The output may contain markups to change the characters' color. - `string` will print `string` with `#FF0000` color (red). - `` will insert the given bitmap. - `````` will execute given command when clicked with specified buttons. If not specified, button is equal to 1 (left mouse button). Using old syntax (without backticks surrounding `command`) will result in `button` attribute being ignored. - `` allows the encapsulation of arbitrary text `str` (which must be `len` `Char`s long, where `len` is encoded as a decimal sequence). Careful use of this and `UnsafeStdinReader`, for example, permits window managers to feed xmobar strings with `` tags mixed with un-trusted content (e.g. window titles). For example, if xmobar is invoked as ```xmobar -c "[Run UnsafeStdinReader]" -t "%UnsafeStdinReader%"``` and receives on standard input the line ```foo/>``` then it will display the text ```foo```, which, when clicked, will cause `test` to be echoed. Other configuration options: `font` : Name of the font to be used. Use the `xft:` prefix for XFT fonts. `bgColor` : Background color. `fgColor` : Default font color. `position` : Top, TopP, TopW, TopSize, Bottom, BottomP, BottomW, BottomSize or Static (with x, y, width and height). : TopP and BottomP take 2 arguments: left padding and right padding. : TopW and BottomW take 2 arguments: an alignment parameter (L for left, C for centered, R for Right) and an integer for the percentage width xmobar window will have in respect to the screen width. : TopSize and BottomSize take 3 arguments: an alignment parameter, an integer for the percentage width, and an integer for the minimum pixel height that the xmobar window will have. : For example: : position = BottomW C 75 : to place xmobar at the bottom, centered with the 75% of the screen width. : Or: : position = BottomP 120 0 : to place xmobar at the bottom, with 120 pixel indent of the left. : Or : position = Static { xpos = 0 , ypos = 0, width = 1024, height = 15 } : or : position = Top `lowerOnStart` : When True the window is sent the bottom of the window stack initially. `hideOnStart` : When set to True the window is initially not mapped, i.e. hidden. It then can be toggled manually (for example using the dbus interface) or automatically (by a plugin) to make it reappear. `allDesktops` : When set to True (the default), xmobar will tell the window manager explicitly to be shown in all desktops, by setting `_NET_WM_DESKTOP` to 0xffffffff. `overrideRedirect` : If you're running xmobar in a tiling window manager, you might need to set this option to `False` so that it behaves as a docked application. Defaults to `True`. `pickBroadest` : When multiple displays are available, xmobar will choose by default the first one to place itself. With this flag set to `True` (the default is `False`) it will choose the broadest one instead. `persistent` : When True the window status is fixed i.e. hiding or revealing is not possible. This option can be toggled at runtime. Defaults to False. `border` : TopB, TopBM, BottomB, BottomBM, FullB, FullBM or NoBorder (default). : TopB, BottomB, FullB take no arguments, and request drawing a border at the top, bottom or around xmobar's window, respectively. : TopBM, BottomBM, FullBM take an integer argument, which is the margin, in pixels, between the border of the window and the drawn border. `borderColor` : Border color. `commands` : For setting the options of the programs to run (optional). `sepChar` : The character to be used for indicating commands in the output template (default '%'). `alignSep` : a 2 character string for aligning text in the output template. The text before the first character will be align to left, the text in between the 2 characters will be centered, and the text after the second character will be align to the right. `template` : The output template. ### Running xmobar with i3status xmobar can be used to display information generated by [i3status], a small program that gathers system information and outputs it in formats suitable for being displayed by the dzen2 status bar, wmii's status bar or xmobar's `StdinReader`. See [i3status manual] for further details. ## Command Line Options xmobar can be either configured with a configuration file or with command line options. In the second case, the command line options will overwrite the corresponding options set in the configuration file. Example: xmobar -B white -a right -F blue -t '%LIPB%' -c '[Run Weather "LIPB" [] 36000]' This is the list of command line options (the output of xmobar --help): Usage: xmobar [OPTION...] [FILE] Options: -h, -? --help This help -V --version Show version information -f font name --font=font name The font name -B bg color --bgcolor=bg color The background color. Default black -F fg color --fgcolor=fg color The foreground color. Default grey -o --top Place xmobar at the top of the screen -b --bottom Place xmobar at the bottom of the screen -d --dock Try to start xmobar as a dock -a alignsep --alignsep=alignsep Separators for left, center and right text alignment. Default: '}{' -s char --sepchar=char The character used to separate commands in the output template. Default '%' -t template --template=template The output template -c commands --commands=commands The list of commands to be executed -C command --add-command=command Add to the list of commands to be executed -x screen --screen=screen On which X screen number to start Mail bug reports and suggestions to ## The DBus Interface When compiled with the optional `with_dbus` flag, xmobar can be controlled over dbus. All signals defined in [src/Signal.hs] as `data SignalType` can now be sent over dbus to xmobar. Due to current limitations of the implementation only one process of xmobar can acquire the dbus. This is handled on a first-come-first-served basis, meaning that the first process will get the dbus interface. Other processes will run without further problems, yet have no dbus interface. [src/Signal.hs]: https://github.com/jaor/xmobar/raw/master/src/Signal.hs - Bus Name: `org.Xmobar.Control` - Object Path: `/org/Xmobar/Control` - Member Name: Any of SignalType, e.g. `string:Reveal` - Interface Name: `org.Xmobar.Control` An example using the `dbus-send` command line utility: dbus-send \ --session \ --dest=org.Xmobar.Control \ --type=method_call \ --print-reply \ '/org/Xmobar/Control' \ org.Xmobar.Control.SendSignal \ "string:Toggle" It is also possible to send multiple signals at once: # send to another screen, reveal and toggle the persistent flag dbus-send [..] \ "string:ChangeScreen" "string:Reveal 0" "string:TogglePersistent" ### Example for using the DBus IPC interface with XMonad Bind the key which should {,un}map xmobar to a dummy value. This is necessary for {,un}grabKey in xmonad. ((0, xK_Alt_L ), return ()) Also, install `avoidStruts` layout modifier from `XMonad.Hooks.ManageDocks` Finally, install these two event hooks (`handleEventHook` in `XConfig`) `myDocksEventHook` is a replacement for `docksEventHook` which reacts on unmap events as well (which `docksEventHook` doesn't). import qualified XMonad.Util.ExtensibleState as XS data DockToggleTime = DTT { lastTime :: Time } deriving (Eq, Show, Typeable) instance ExtensionClass DockToggleTime where initialValue = DTT 0 toggleDocksHook :: Int -> KeySym -> Event -> X All toggleDocksHook to ks ( KeyEvent { ev_event_display = d , ev_event_type = et , ev_keycode = ekc , ev_time = etime } ) = io (keysymToKeycode d ks) >>= toggleDocks >> return (All True) where toggleDocks kc | ekc == kc && et == keyPress = do safeSendSignal ["Reveal 0", "TogglePersistent"] XS.put ( DTT etime ) | ekc == kc && et == keyRelease = do gap <- XS.gets ( (-) etime . lastTime ) safeSendSignal [ "TogglePersistent" , "Hide " ++ show (if gap < 400 then to else 0) ] | otherwise = return () safeSendSignal s = catchX (io $ sendSignal s) (return ()) sendSignal = withSession . callSignal withSession mc = connectSession >>= \c -> callNoReply c mc >> disconnect c callSignal :: [String] -> MethodCall callSignal s = ( methodCall ( objectPath_ "/org/Xmobar/Control" ) ( interfaceName_ "org.Xmobar.Control" ) ( memberName_ "SendSignal" ) ) { methodCallDestination = Just $ busName_ "org.Xmobar.Control" , methodCallBody = map toVariant s } toggleDocksHook _ _ _ = return (All True) myDocksEventHook :: Event -> X All myDocksEventHook e = do when (et == mapNotify || et == unmapNotify) $ whenX ((not `fmap` (isClient w)) <&&> runQuery checkDock w) refresh return (All True) where w = ev_window e et = ev_event_type e ## The Output Template The output template must contain at least one command. xmobar will parse the template and will search for the command to be executed in the `commands` configuration option. First an `alias` will be searched (plugins such as Weather or Network have default aliases, see below). After that, the command name will be tried. If a command is found, the arguments specified in the `commands` list will be used. If no command is found in the `commands` list, xmobar will ask the operating system to execute a program with the name found in the template. If the execution is not successful an error will be reported. It's possible to insert in the global templates icon directives of the form: which will produce the expected result. It's also possible to use action directives of the form: which will be executed when clicked on with specified mouse buttons. This tag can be nested, allowing different commands to be run depending on button clicked. ## The `commands` Configuration Option The `commands` configuration option is a list of commands information and arguments to be used by xmobar when parsing the output template. Each member of the list consists in a command prefixed by the `Run` keyword. Each command has arguments to control the way xmobar is going to execute it. The option consists in a list of commands separated by a comma and enclosed by square parenthesis. Example: [Run Memory ["-t","Mem: %"] 10, Run Swap [] 10] to run the Memory monitor plugin with the specified template, and the swap monitor plugin, with default options, every second. And here's an example of a template for the commands above using an icon: template=" " This example will run "xclock" command when date is clicked: template="%date% The only internal available command is `Com` (see below Executing External Commands). All other commands are provided by plugins. xmobar comes with some plugins, providing a set of system monitors, a standard input reader, an Unix named pipe reader, a configurable date plugin, and much more: we list all available plugins below. Other commands can be created as plugins with the Plugin infrastructure. See below. ## System Monitor Plugins This is the description of the system monitor plugins available in xmobar. Some of them are only installed when an optional build option is set: we mention that fact, when needed, in their description. Each monitor has an `alias` to be used in the output template. Monitors have default aliases. The sections below describe every monitor in turn, but before we provide a list of the configuration options (or *monitor arguments*) they all share. ### Default Monitor Arguments Monitors accept a common set of arguments, described in the first subsection below. In addition, some monitors accept additional options that are specific to them. When specifying the list of arguments in your configuration, the common options come first, followed by "--", followed by any monitor-specific options. These are the options available for all monitors below: - `-t` _string_ Output template - Template for the monitor output. Field names must be enclosed between pointy brackets (``) and will be substituted by the computed values. You can also specify the foreground (and optionally, background) color for a region by bracketing it between `` (or ``) and ``. The rest of the template is output verbatim. - Long option: `--template` - Default value: per monitor (see above). - `-H` _number_ The high threshold. - Numerical values higher than _number_ will be displayed with the color specified by `-h` (see below). - Long option: `--High` - Default value: 66 - `-L` _number_ The low threshold. - Numerical values higher than _number_ and lower than the high threshold will be displayed with the color specified by `-n` (see below). Values lower than _number_ will use the `-l` color. - Long option: `--Low` - Default value: 33 - `-h` _color_ High threshold color. - Color for displaying values above the high threshold. _color_ can be either a name (e.g. "blue") or an hexadecimal RGB (e.g. "#FF0000"). - Long option: `--high` - Default: none (use the default foreground). - `-n` _color_ Color for 'normal' values - Color used for values greater than the low threshold but lower than the high one. - Long option: `--normal` - Default: none (use the default foreground). - `-l` _color_ The low threshold color - Color for displaying values below the low threshold. - Long option: `--low` - Default: none (use the default foreground). - `-S` _boolean_ Display optional suffixes - When set to a true designator ("True", "Yes" or "On"), optional value suffixes such as the '%' symbol or optional units will be displayed. - Long option: `--suffix` - Default: False. - `-p` _number_ Percentages padding - Width, in number of digits, for quantities representing percentages. For instance `-p 3` means that all percentages in the monitor will be represented using 3 digits. - Long option: `--ppad` - Default value: 0 (don't pad) - `-d` _number_ Decimal digits - Number of digits after the decimal period to use in float values. - Long option: `--ddigits` - Default value: 0 (display only integer part) - `-m` _number_ Minimum field width - Minimum width, in number of characters, of the fields in the monitor template. Values whose printed representation is shorter than this value will be padded using the padding characters given by the `-c` option with the alignment specified by `-a` (see below). - Long option: `--minwidth` - Default: 0 - `-M` _number_ Maximum field width - Maximum width, in number of characters, of the fields in the monitor template. Values whose printed representation is longer than this value will be truncated. - Long option: `--maxwidth` - Default: 0 (no maximum width) - `-w` _number_ Fixed field width - All fields will be set to this width, padding or truncating as needed. - Long option: `--width` - Default: 0 (variable width) - `-c` _string_ - Characters used for padding. The characters of _string_ are used cyclically. E.g., with `-P +- -w 6`, a field with value "foo" will be represented as "+-+foo". - Long option: `--padchars` - Default value: " " - `-a` r|l Field alignment - Whether to use right (r) or left (l) alignment of field values when padding. - Long option: `--align` - Default value: r (padding to the left) - `-b` _string_ Bar background - Characters used, cyclically, to draw the background of bars. For instance, if you set this option to "·.", an empty bar will look like this: `·.·.·.·.·.` - Long option: `--bback` - Default value: ":" - `-f` _string_ Bar foreground - Characters used, cyclically, to draw the foreground of bars. - Long option: `--bfore` - Default value: "#" - `-W` _number_ Bar width - Total number of characters used to draw bars. - Long option: `--bwidth` - Default value: 10 - `-x` _string_ N/A string - String to be used when the monitor is not available - Long option: `--nastring` - Default value: "N/A" Commands' arguments must be set as a list. E.g.: Run Weather "EGPF" ["-t", ": C"] 36000 In this case xmobar will run the weather monitor, getting information for the weather station ID EGPF (Glasgow Airport, as a homage to GHC) every hour (36000 tenth of seconds), with a template that will output something like: Glasgow Airport: 16.0C ### `Uptime Args RefreshRate` - Aliases to `uptime` - Args: default monitor arguments. The low and high thresholds refer to the number of days. - Variables that can be used with the `-t`/`--template` argument: `days`, `hours`, `minutes`, `seconds`. The total uptime is the sum of all those fields. You can set the `-S` argument to "True" to add units to the display of those numeric fields. - Default template: `Up: d h m` ### `Weather StationID Args RefreshRate` - Aliases to the Station ID: so `Weather "LIPB" []` can be used in template as `%LIPB%` - Args: default monitor arguments - Variables that can be used with the `-t`/`--template` argument: `station`, `stationState`, `year`, `month`, `day`, `hour`, `windCardinal`, `windAzimuth`, `windMph`, `windKnot`, `visibility`, `skyCondition`, `tempC`, `tempF`, `dewPointC`, `dewPointF`, `rh`, `pressure` - Default template: `: C, rh % ()` - Retrieves weather information from http://weather.noaa.gov. ### `Network Interface Args RefreshRate` - Aliases to the interface name: so `Network "eth0" []` can be used as `%eth0%` - Args: default monitor arguments - Variables that can be used with the `-t`/`--template` argument: `dev`, `rx`, `tx`, `rxbar`, `rxvbar`, `txbar`, `txvbar`. Reception and transmission rates (`rx` and `tx`) are displayed by default as Kb/s, without any suffixes, but you can set the `-S` to "True" to make them displayed with adaptive units (Kb/s, Mb/s, etc.). - Default template: `: KB|KB` ### `DynNetwork Args RefreshRate` - Active interface is detected automatically - Aliases to "dynnetwork" - Args: default monitor arguments - Variables that can be used with the `-t`/`--template` argument: `dev`, `rx`, `tx`, `rxbar`, `rxvbar`, `txbar`, `txvbar`. Reception and transmission rates (`rx` and `tx`) are displayed in Kbytes per second, and you can set the `-S` to "True" to make them displayed with units (the string "Kb/s"). - Default template: `: KB|KB` ### `Wireless Interface Args RefreshRate` - Aliases to the interface name with the suffix "wi": thus, `Wireless "wlan0" []` can be used as `%wlan0wi%` - Args: default monitor arguments - Variables that can be used with the `-t`/`--template` argument: `essid`, `quality`, `qualitybar`, `qualityvbar` - Default template: ` ` - Requires the C library [iwlib] (part of the wireless tools suite) installed in your system. In addition, to activate this plugin you must pass `--flags="with_iwlib"` during compilation. ### `Memory Args RefreshRate` - Aliases to `memory` - Args: default monitor arguments - Variables that can be used with the `-t`/`--template` argument: `total`, `free`, `buffer`, `cache`, `rest`, `used`, `usedratio`, `usedbar`, `usedvbar`, `freeratio`, `freebar`, `freevbar` - Default template: `Mem: % (M)` ### `Swap Args RefreshRate` - Aliases to `swap` - Args: default monitor arguments - Variables that can be used with the `-t`/`--template` argument: `total`, `used`, `free`, `usedratio` - Default template: `Swap: %` ### `Cpu Args RefreshRate` - Aliases to `cpu` - Args: default monitor arguments - Variables that can be used with the `-t`/`--template` argument: `total`, `bar`, `vbar`, `user`, `nice`, `system`, `idle`, `iowait` - Default template: `Cpu: %` ### `MultiCpu Args RefreshRate` - Aliases to `multicpu` - Args: default monitor arguments - Variables that can be used with the `-t`/`--template` argument: `autototal`, `autobar`, `autovbar`, `autouser`, `autonice`, `autosystem`, `autoidle`, `total`, `bar`, `vbar`, `user`, `nice`, `system`, `idle`, `total0`, `bar0`, `vbar0`, `user0`, `nice0`, `system0`, `idle0`, ... The auto* variables automatically detect the number of CPUs on the system and display one entry for each. - Default template: `Cpu: %` ### `Battery Args RefreshRate` - Same as `BatteryP ["BAT0", "BAT1", "BAT2"] Args RefreshRate`. ### `BatteryP Dirs Args RefreshRate` - Aliases to `battery` - Dirs: list of directories in `/sys/class/power_supply/` where to look for the ACPI files of each battery. Example: `["BAT0","BAT1","BAT2"]`. Only the first 3 directories will be searched. - Args: default monitor arguments, plus the following specific ones (these options, being specific to the monitor, are to be specified after a `--` in the argument list): - `-O`: string for AC "on" status (default: "On") - `-i`: string for AC "idle" status (default: "On") - `-o`: string for AC "off" status (default: "Off") - `-L`: low power (`watts`) threshold (default: -12) - `-H`: high power threshold (default: -10) - `-l`: color to display power lower than the `-L` threshold - `-m`: color to display power lower than the `-H` threshold - `-h`: color to display power higher than the `-H` threshold - `-p`: color to display positive power (battery charging) - `-f`: file in `/sys/class/power_supply` with AC info (default: "AC/online") - Variables that can be used with the `-t`/`--template` argument: `left`, `leftbar`, `leftvbar`, `timeleft`, `watts`, `acstatus` - Default template: `Batt: , % / ` - Example (note that you need "--" to separate regular monitor options from Battery's specific ones): Run BatteryP ["BAT0"] ["-t", " (%)", "-L", "10", "-H", "80", "-p", "3", "--", "-O", "On - ", "-i", "", "-L", "-15", "-H", "-5", "-l", "red", "-m", "blue", "-h", "green"] 600 In the above example, the thresholds before the "--" separator affect only the `` and `` fields, while those after the separator affect how `` is displayed. For this monitor, neither the generic nor the specific options have any effect on ``. It is also possible to specify template variables in the `-O` and `-o` switches, as in the following example: Run BatteryP ["BAT0"] ["-t", "" , "-L", "10", "-H", "80" , "-l", "red", "-h", "green" , "--", "-O", "Charging", "-o", "Battery: %" ] 10 - The "idle" AC state is selected whenever the AC power entering the battery is zero. ### `BatteryN Dirs Args RefreshRate Alias` Works like `BatteryP`, but lets you specify an alias for the monitor other than "battery". Useful in case you one separate monitors for more than one battery. ### `TopProc Args RefreshRate` - Aliases to `top` - Args: default monitor arguments. The low and high thresholds (`-L` and `-H`) denote, for memory entries, the percent of the process memory over the total amount of memory currently in use and, for cpu entries, the activity percentage (i.e., the value of `cpuN`, which takes values between 0 and 100). - Variables that can be used with the `-t`/`--template` argument: `no`, `name1`, `cpu1`, `both1`, `mname1`, `mem1`, `mboth1`, `name2`, `cpu2`, `both2`, `mname2`, `mem2`, `mboth2`, ... - Default template: `` - Displays the name and cpu/mem usage of running processes (`bothn` and `mboth` display both, and is useful to specify an overall maximum and/or minimum width, using the `-m`/`-M` arguments. `no` gives the total number of processes. ### `TopMem Args RefreshRate` - Aliases to `topmem` - Args: default monitor arguments. The low and high thresholds (`-L` and `-H`) denote the percent of the process memory over the total amount of memory currently in use. - Variables that can be used with the `-t`/`--template` argument: `name1`, `mem1`, `both1`, `name2`, `mem2`, `both2`, ... - Default template: `` - Displays the name and RSS (resident memory size) of running processes (`bothn` displays both, and is useful to specify an overall maximum and/or minimum width, using the `-m`/`-M` arguments. ### `DiskU Disks Args RefreshRate` - Aliases to `disku` - Disks: list of pairs of the form (device or mount point, template), where the template can contain ``, ``, ``, `` or ``, ``, ``, `` or `` for total, free, used, free percentage and used percentage of the given file system capacity. - Args: default monitor arguments. `-t`/`--template` is ignored. - Default template: none (you must specify a template for each file system). - Example: DiskU [("/", "/"), ("sdb1", "")] ["-L", "20", "-H", "50", "-m", "1", "-p", "3"] 20 ### `DiskIO Disks Args RefreshRate` - Aliases to `diskio` - Disks: list of pairs of the form (device or mount point, template), where the template can contain ``, ``, `` for total, read and write speed, respectively. There are also bar versions of each: ``, ``, ``, ``, ``, and ``. - Args: default monitor arguments. `-t`/`--template` is ignored. - Default template: none (you must specify a template for each file system). - Example: DiskIO [("/", " "), ("sdb1", "")] [] 10 ### `ThermalZone Number Args RefreshRate` - Aliases to "thermaln": so `ThermalZone 0 []` can be used in template as `%thermal0%` - Args: default monitor arguments - Variables that can be used with the `-t`/`--template` argument: `temp` - Default template: `C` - This plugin works only on systems with devices having thermal zone. Check directories in `/sys/class/thermal` for possible values of the zone number (e.g., 0 corresponds to `thermal_zone0` in that directory). - Example: Run ThermalZone 0 ["-t",": C"] 30 #### `Thermal Zone Args RefreshRate` - **This plugin is deprecated. Use `ThermalZone` instead.** - Aliases to the Zone: so `Thermal "THRM" []` can be used in template as `%THRM%` - Args: default monitor arguments - Variables that can be used with the `-t`/`--template` argument: `temp` - Default template: `Thm: C` - This plugin works only on systems with devices having thermal zone. Check directories in /proc/acpi/thermal_zone for possible values. - Example: Run Thermal "THRM" ["-t","iwl4965-temp: C"] 50 ### `CpuFreq Args RefreshRate` - Aliases to `cpufreq` - Args: default monitor arguments - Variables that can be used with the `-t`/`--template` argument: `cpu0`, `cpu1`, .., `cpuN` - Default template: `Freq: GHz` - This monitor requires acpi_cpufreq module to be loaded in kernel - Example: Run CpuFreq ["-t", "Freq:|GHz", "-L", "0", "-H", "2", "-l", "lightblue", "-n","white", "-h", "red"] 50 ### `CoreTemp Args RefreshRate` - Aliases to `coretemp` - Args: default monitor arguments - Variables that can be used with the `-t`/`--template` argument: `core0`, `core1`, .., `coreN` - Default template: `Temp: C` - This monitor requires coretemp module to be loaded in kernel - Example: Run CoreTemp ["-t", "Temp:|C", "-L", "40", "-H", "60", "-l", "lightblue", "-n", "gray90", "-h", "red"] 50 ### `Volume Mixer Element Args RefreshRate` - Aliases to the mixer name and element name separated by a colon. Thus, `Volume "default" "Master" [] 10` can be used as `%default:Master%`. - Args: default monitor arguments. Also accepts: - `-O` _string_ On string - The string used in place of `` when the mixer element is on. Defaults to "[on]". - Long option: `--on` - `-o` _string_ Off string - The string used in place of `` when the mixer element is off. Defaults to "[off]". - Long option: `--off` - `-C` _color_ On color - The color to be used for `` when the mixer element is on. Defaults to "green". - Long option: `--onc` - `-c` _color_ Off color - The color to be used for `` when the mixer element is off. Defaults to "red". - Long option: `--offc` - `--highd` _number_ High threshold for dB. Defaults to -5.0. - `--lowd` _number_ Low threshold for dB. Defaults to -30.0. - Variables that can be used with the `-t`/`--template` argument: `volume`, `volumebar`, `volumevbar`, `dB`, `status` - Note that `dB` might only return 0 on your system. This is known to happen on systems with a pulseaudio backend. - Default template: `Vol: % ` - Requires the package [alsa-core] and [alsa-mixer] installed in your system. In addition, to activate this plugin you must pass `--flags="with_alsa"` during compilation. ### `MPD Args RefreshRate` - This monitor will only be compiled if you ask for it using the `with_mpd` flag. It needs [libmpd] 5.0 or later (available on Hackage). - Aliases to `mpd` - Args: default monitor arguments. In addition you can provide `-P`, `-S` and `-Z`, with an string argument, to represent the playing, stopped and paused states in the `statei` template field. The environment variables `MPD_HOST` and `MPD_PORT` are used to configure the mpd server to communicate with. - Variables that can be used with the `-t`/`--template` argument: `bar`, `vbar`, `state`, `statei`, `volume`, `length`, `lapsed`, `remaining`, `plength` (playlist length), `ppos` (playlist position), `name`, `artist`, `composer`, `performer`, `album`, `title`, `track`, `file`, `genre` - Default template: `MPD: ` - Example (note that you need "--" to separate regular monitor options from MPD's specific ones): Run MPD ["-t", " (<album>) <track>/<plength> <statei> ", "--", "-P", ">>", "-Z", "|", "-S", "><"] 10 ### `Mpris1 PlayerName Args RefreshRate` - Aliases to `mpris1` - Requires [dbus] and [text] packages. To activate, pass `--flags="with_mpris"` during compilation. - PlayerName: player supporting MPRIS v1 protocol, in lowercase. - Args: default monitor arguments. - Variables that can be used with the `-t`/`--template` argument: `album`, `artist`, `arturl`, `length`, `title`, `tracknumber` - Default template: `<artist> - <title>` - Example: Run Mpris1 "clementine" ["-t", "<artist> - [<tracknumber>] <title>"] 10 ### `Mpris2 PlayerName Args RefreshRate` - Aliases to `mpris2` - Requires [dbus] and [text] packages. To activate, pass `--flags="with_mpris"` during compilation. - PlayerName: player supporting MPRIS v2 protocol, in lowercase. - Args: default monitor arguments. - Variables that can be used with the `-t`/`--template` argument: `album`, `artist`, `arturl`, `length`, `title`, `tracknumber`, `composer`, `genre` - Default template: `<artist> - <title>` - Example: Run Mpris2 "spotify" ["-t", "<artist> - [<composer>] <title>"] 10 ### `Mail Args Alias` - Args: list of maildirs in form `[("name1","path1"),...]`. Paths may start with a '~' to expand to the user's home directory. - This plugin requires inotify support in your Linux kernel and the [hinotify] package. To activate, pass `--flags="with_inotify"` during compilation. - Example: Run Mail [("inbox", "~/var/mail/inbox"), ("lists", "~/var/mail/lists")] "mail" ### `MBox Mboxes Opts Alias` - Mboxes a list of mbox files of the form `[("name", "path", "color")]`, where name is the displayed name, path the absolute or relative (to BaseDir) path of the mbox file, and color the color to use to display the mail count (use an empty string for the default). - Opts is a possibly empty list of options, as flags. Possible values: -a --all (no arg) Show all mailboxes, even if empty. -d dir --dir dir a string giving the base directory where mbox files with a relative path live. -p prefix --prefix prefix a string giving a prefix for the list of displayed mail counts -s suffix --suffix suffix a string giving a suffix for the list of displayed mail counts - Paths may start with a '~' to expand to the user's home directory. - This plugin requires inotify support in your Linux kernel and the [hinotify] package. To activate, pass `--flags="with_inotify"` during compilation. - Example. The following command look for mails in `/var/mail/inbox` and `~/foo/mbox`, and will put a space in front of the printed string (when it's not empty); it can be used in the template with the alias `mbox`: Run MBox [("I ", "inbox", "red"), ("O ", "~/foo/mbox", "")] ["-d", "/var/mail/", "-p", " "] "mbox" ### `XPropertyLog PropName` - Aliases to `PropName` - Reads the X property named by `PropName` (a string) and displays its value. The [samples/xmonadpropwrite.hs script] in xmobar's distribution can be used to set the given property from the output of any other program or script. [samples/xmonadpropwrite.hs script]: https://github.com/jaor/xmobar/raw/master/samples/xmonadpropwrite.hs ### `UnsafeXPropertyLog PropName` - Aliases to `PropName` - Same as `XPropertyLog`, but the input is not filtered to avoid injection of actions (cf. `UnsafeXMonadLog`). The program writing the value of the read property is responsible of performing any needed cleanups. ### `NamedXPropertyLog PropName Alias` - Aliases to `Alias` - Same as `XPropertyLog`, but a custom alias can be specified. ### `NamedXPropertyLog PropName Alias` - Aliases to `Alias` - Same as `UnsafeXPropertyLog`, but a custom alias can be specified. ### `Brightness Args RefreshRate` - Aliases to `bright` - Args: default monitor arguments, plus the following specif ones: - `-D`: directory in `/sys/class/backlight/` with files in it (default: "acpi_video0") - `-C`: file with the current brightness (default: actual_brightness) - `-M`: file with the maximum brightness (default: max_brightness) - Variables that can be used with the `-t`/`--template` argument: `vbar`, `percent`, `bar` - Default template: `<percent>` - Example: Run Brightness ["-t", "<bar>"] 60 ### `Kbd Opts` - Registers to XKB/X11-Events and output the currently active keyboard layout. Supports replacement of layout names. - Aliases to `kbd` - Opts is a list of tuples: - first element of the tuple is the search string - second element of the tuple is the corresponding replacement - Example: Run Kbd [("us(dvorak)", "DV"), ("us", "US")] ### `Locks` - Displays the status of Caps Lock, Num Lock and Scroll Lock. - Aliases to `locks` - Example: Run Locks ### `CatInt n fn` - Reads and displays an integer from the file whose path is `fn` (especially useful with files in `/sys`). - Aliases as `catn` (e.g. `Cat 0` as `cat0`, etc.) so you can have several. - Example: Run CatInt 0 "/sys/devices/platform/thinkpad_hwmon/fan1_input" [] 50 ## Executing External Commands In order to execute an external command you can either write the command name in the template, in this case it will be executed without arguments, or you can configure it in the "commands" configuration option list with the Com template command: `Com ProgramName Args Alias RefreshRate` - ProgramName: the name of the program - Args: the arguments to be passed to the program at execution time - RefreshRate: number of tenths of second between re-runs of the command. A zero or negative rate means that the command will be executed only once. - Alias: a name to be used in the template. If the alias is en empty string the program name can be used in the template. E.g.: Run Com "uname" ["-s","-r"] "" 0 can be used in the output template as `%uname%` (and xmobar will call _uname_ only once), while Run Com "date" ["+\"%a %b %_d %H:%M\""] "mydate" 600 can be used in the output template as `%mydate%` ## Other Plugins <font size="+1">**`StdinReader`**</font> - Aliases to StdinReader - Displays any text received by xmobar on its standard input. - Strips actions from the text received. This means you can't pass dynamic actions via stdin. This is safer than `UnsafeStdinReader` because there is no need to escape the content before passing it to xmobar's standard input. <font size="+1">**`UnsafeStdinReader`**</font> - Aliases to UnsafeStdinReader - Displays any text received by xmobar on its standard input. - Will not do anything to the text received. This means you can pass dynamic actions via stdin. Be careful to remove tags from dynamic text that you pipe-thru to xmobar's standard input, e.g. window's title. There is no way to escape the tags, i.e. you can't print a literal `<action>` tag as a text on xmobar. - Sample usage: send to xmobar's stdin the list of your workspaces enclosed by actions tags that switches the workspaces to be able to switch workspaces by clicking on xmobar: ```<action=`xdotool key alt+1`>ws1</action> <action=`xdotool key alt+1`>ws2</action>``` <font size="+1">**`Date Format Alias RefreshRate`**</font> - Format is a time format string, as accepted by the standard ISO C `strftime` function (or Haskell's `formatCalendarTime`). - Sample usage: `Run Date "%a %b %_d %Y <fc=#ee9a00>%H:%M:%S</fc>" "date" 10` <font size="+1">**`DateZone Format Locale Zone Alias RefreshRate`**</font> - Format is a time format string, as accepted by the standard ISO C `strftime` function (or Haskell's `formatCalendarTime`). - If Locale is "" the default locale of the system is used, otherwise the given locale. If there are more instances of DateZone, using "" as input for Locale is not recommended. - Zone is the name of the TimeZone. It is assumed that the tz database is stored in /usr/share/zoneinfo/. If "" is given as Zone, the default system time is used. - Sample usage: `Run DateZone "%a %H:%M:%S" "de_DE.UTF-8" "Europe/Vienna" "viennaTime" 10` <font size="+1">**`CommandReader "/path/to/program" Alias`**</font> - Runs the given program, and displays its standard output. <font size="+1">**`PipeReader "default text:/path/to/pipe" Alias`**</font> - Reads its displayed output from the given pipe. - Prefix an optional default text separated by a colon <font size="+1">**`MarqueePipeReader "default text:/path/to/pipe" (length, rate, sep) Alias`**</font> - Generally equivalent to PipeReader - Text is displayed as marquee with the specified length, rate in 10th seconds and separator when it wraps around Run MarqueePipeReader "/tmp/testpipe" (10, 7, "+") "mpipe" <font size="+1"> **`BufferedPipeReader Alias [(Timeout, Bool, "/path/to/pipe1"), ..]`** </font> - Display data from multiple pipes. - Timeout (in tenth of seconds) is the value after which the previous content is restored i.e. if there was already something from a previous pipe it will be put on display again, overwriting the current status. - A pipe with Timeout of 0 will be displayed permanently, just like `PipeReader` - The boolean option indicates whether new data for this pipe should make xmobar appear (unhide, reveal). In this case, the Timeout additionally specifies when the window should be hidden again. The output is restored in any case. - Use it for OSD-like status bars e.g. for setting the volume or brightness: Run BufferedPipeReader "bpr" [ ( 0, False, "/tmp/xmobar_window" ) , ( 15, True, "/tmp/xmobar_status" ) ] Have your window manager send window titles to `"/tmp/xmobar_window"`. They will always be shown and not reveal your xmobar. Sending some status information to `"/tmp/xmobar_status"` will reveal xmonad for 1.5 seconds and temporarily overwrite the window titles. - Take a look at [samples/status.sh] [samples/status.sh]: http://github.com/jaor/xmobar/raw/master/samples/status.sh <font size="+1">**`XMonadLog`**</font> - Aliases to XMonadLog - Displays information from xmonad's `_XMONAD_LOG`. You can set this property by using `xmonadPropLog` as your log hook in xmonad's configuration, as in the following example (more info [here]): main = do spawn "xmobar" xmonad $ defaultConfig { logHook = dynamicLogString defaultPP >>= xmonadPropLog } This plugin can be used as a sometimes more convenient alternative to `StdinReader`. For instance, it allows you to (re)start xmobar outside xmonad. [here]: http://xmonad.org/xmonad-docs/xmonad-contrib/XMonad-Hooks-DynamicLog.html <font size="+1">**`UnsafeXMonadLog`**</font> - Aliases to UnsafeXMonadLog - Similar to StdinReader versus UnsafeStdinReader, this does not strip `<action ...>` tags from XMonad's `_XMONAD_LOG`. - It is advised that you still use `xmobarStrip` for the ppTitle in your logHook: myPP = defaultPP { ppTitle = xmobarStrip } main = xmonad $ defaultConfig { logHook = dynamicLogString myPP >>= xmonadPropLog } Plugins ======= ## Writing a Plugin Writing a plugin for xmobar should be very simple. You need to create a data type with at least one constructor. Next you must declare this data type an instance of the `Exec` class, by defining the 1 needed method (alternatively `start` or `run`) and 2 optional ones (alias and rate): start :: e -> (String -> IO ()) -> IO () run :: e -> IO String rate :: e -> Int alias :: e -> String `start` must receive a callback to be used to display the `String` produced by the plugin. This method can be used for plugins that need to perform asynchronous actions. See `Plugins/PipeReader.hs` for an example. `run` can be used for simpler plugins. If you define only `run` the plugin will be run every second. To overwrite this default you just need to implement `rate`, which must return the number of tenth of seconds between every successive runs. See `Plugins/HelloWorld.hs` for an example of a plugin that runs just once, and `Plugins/Date.hs` for one that implements `rate`. Notice that Date could be implemented as: instance Exec Date where alias (Date _ a _) = a start (Date f _ r) = date f r date :: String -> Int -> (String -> IO ()) -> IO () date format r callback = do go where go = do t <- toCalendarTime =<< getClockTime callback $ formatCalendarTime defaultTimeLocale format t tenthSeconds r >> go This implementation is equivalent to the one you can read in `Plugins/Date.hs`. `alias` is the name to be used in the output template. Default alias will be the data type constructor. Implementing a plugin requires importing the plugin API (the `Exec` class definition), that is exported by `Plugins.hs`. So you just need to import it in your module with: import Plugins After that your type constructor can be used as an argument for the Runnable type constructor `Run` in the `commands` list of the configuration options. This requires importing your plugin into `Config.hs` and adding your type to the type list in the type signature of `Config.runnableTypes`. For a very basic example see `samples/Plugins/HelloWorld.hs` or the other plugins that are distributed with xmobar. ## Installing/Removing a Plugin Installing a plugin should require 3 steps. Here we are going to install the HelloWorld plugin that comes with xmobar, assuming that you copied it to `src/Plugins`: 1. import the plugin module in `Config.hs`, by adding: import Plugins.HelloWorld 2. add the plugin data type to the list of data types in the type signature of `runnableTypes` in `Config.hs`. For instance, for the HelloWorld plugin, change `runnableTypes` into: runnableTypes :: Command :*: Monitors :*: HelloWorld :*: () runnableTypes = undefined 3. Rebuild and reinstall xmobar. Now test it with: xmobar Plugins/helloworld.config As you may see in the example configuration file, the plugin can be used by adding, in the `commands` list: Run HelloWorld and, in the output template, the alias of the plugin: %helloWorld% That's it. To remove a plugin, just remove its type from the type signature of runnableTypes and remove the imported modules. To remove the system monitor plugin: 1. remove, from `Config.hs`, the line import Plugins.Monitors 2. in `Config.hs` change runnableTypes :: Command :*: Monitors :*: () runnableTypes = undefined to runnableTypes :: Command :*: () runnableTypes = undefined 3. rebuild xmobar. Authors and credits =================== Andrea Rossato originally designed and implemented xmobar up to version 0.11.1. Since then, it is maintained and developed by [jao], with the help of the greater xmobar and Haskell communities. In particular, xmobar [incorporates patches] by Axel Angel, Ben Boeckel, Roman Cheplyaka, Patrick Chilton, Nathaniel Wesley Filardo, John Goerzen, Reto Hablützel, Juraj Hercek, Tomas Janousek, Spencer Janssen, Jochen Keil, Lennart Kolmodin, Krzysztof Kosciuszkiewicz, Dmitry Kurochkin, Todd Lunter, Robert J. Macomber, Dmitry Malikov, David McLean, Marcin Mikołajczyk, Tony Morris, Eric Mrak, Thiago Negri, Edward O'Callaghan, Svein Ove, Martin Perner, Jens Petersen, Alexander Polakov, Petr Rockai, Peter Simons, Andrew Sackville-West, Alexander Solovyov, John Soros, Artem Tarasov, Sergei Trofimovich, Thomas Tuegel, Jan Vornberger, Daniel Wagner and Norbert Zeh. [jao]: http://jao.io [incorporates patches]: http://www.ohloh.net/p/xmobar/contributors ## Thanks __Andrea Rossato__: Thanks to Robert Manea and Spencer Janssen for their help in understanding how X works. They gave me suggestions on how to solve many problems with xmobar. Thanks to Claus Reinke for make me understand existential types (or at least for letting me think I grasp existential types...;-). __jao__: Thanks to Andrea for creating xmobar in the first place, and for giving me the chance to contribute. Useful links ============ - [Github page]. - [Mailing list]. - [xmobar's Ohloh page]. - To understand the internal mysteries of xmobar you may try reading [this tutorial] on X Window Programming in Haskell. - My [sawflibs] project includes a module to automate running xmobar in [sawfish]. [xmobar's Ohloh page]: https://www.ohloh.net/p/xmobar [this tutorial]: http://www.haskell.org/haskellwiki/X_window_programming_in_Haskell [sawflibs]: http://github.com/jaor/sawflibs License ======= This software is released under a BSD-style license. See [LICENSE] for more details. Copyright © 2010-2013 Jose Antonio Ortega Ruiz Copyright © 2007-2010 Andrea Rossato [Github]: http://github.com/jaor/xmobar/ [Github page]: http://github.com/jaor/xmobar [Hackage]: http://hackage.haskell.org/package/xmobar/ [LICENSE]: https://github.com/jaor/xmobar/raw/master/LICENSE [Mailing list]: http://projects.haskell.org/cgi-bin/mailman/listinfo/xmobar [MPD]: http://mpd.wikia.com/ [X11-xft]: http://hackage.haskell.org/package/X11-xft/ [i3status]: http://i3wm.org/i3status/ [i3status manual]: http://i3wm.org/i3status/manpage.html#_using_i3status_with_xmobar [iwlib]: http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Tools.html [libasound]: http://packages.debian.org/stable/libasound2-dev [hinotify]: http://hackage.haskell.org/package/hinotify/ [libmpd]: http://hackage.haskell.org/package/libmpd/ [dbus]: http://hackage.haskell.org/package/dbus [text]: http://hackage.haskell.org/package/text [sawfish]: http://sawfish.wikia.com/ [utf8-string]: http://hackage.haskell.org/package/utf8-string/ [alsa-core]: http://hackage.haskell.org/package/alsa-core [alsa-mixer]: http://hackage.haskell.org/package/alsa-mixer [timezone-olson]: http://hackage.haskell.org/package/timezone-olson [timezone-series]: http://hackage.haskell.org/package/timezone-series