i3 User’s Guide
===============
Michael Stapelberg <michael+i3@stapelberg.de>
-October 2011
+January 2012
This document contains all the information you need to configure and use the i3
window manager. If it does not, please contact us on IRC (preferred) or post your
i3 stores all information about the X11 outputs, workspaces and layout of the
windows on them in a tree. The root node is the X11 root window, followed by
the X11 outputs, then dock areas and a content container, then workspaces and
-finally the windows themselve. In previous versions of i3 we had multiple lists
+finally the windows themselves. In previous versions of i3 we had multiple lists
(of outputs, workspaces) and a table for each workspace. That approach turned
out to be complicated to use (snapping), understand and implement.
*Examples*:
--------------------------------
# Fullscreen
-bindsym mod+f f
+bindsym mod+f fullscreen
# Restart
bindsym mod+Shift+r restart
When holding the floating modifier, you can resize a floating window by
pressing the right mouse button on it and moving around while holding it. If
-you hold the shift button as well, the resize will be proportional.
+you hold the shift button as well, the resize will be proportional (the aspect
+ratio will be preserved).
*Syntax*:
--------------------------------
To get the class and instance, you can use +xprop+. After clicking on the
window, you will see the following output:
-*xwininfo*:
+*xprop*:
-----------------------------------
WM_CLASS(STRING) = "irssi", "URxvt"
-----------------------------------
used to paint it. If you use a color other than black for your terminals, you
most likely want to set the client background color to the same color as your
terminal program's background color to avoid black gaps between the rendered
-area of the termianal and the i3 border.
+area of the terminal and the i3 border.
Colors are in HTML hex format (#rrggbb), see the following example:
(to display a workspace bar), and to control i3.
The IPC socket is enabled by default and will be created in
-+/tmp/i3-%u/ipc-socket.%p+ where +%u+ is your UNIX username and +%p+ is the PID
-of i3.
++/tmp/i3-%u.XXXXXX/ipc-socket.%p+ where +%u+ is your UNIX username, +%p+ is
+the PID of i3 and XXXXXX is a string of random characters from the portable
+filename character set (see mkdtemp(3)).
You can override the default path through the environment-variable +I3SOCK+ or
by specifying the +ipc-socket+ directive. This is discouraged, though, since i3
-does the right thing by default.
+does the right thing by default. If you decide to change it, it is strongly
+recommended to set this to a location in your home directory so that no other
+user can create that directory.
*Examples*:
----------------------------
-ipc-socket /tmp/i3-ipc.sock
+ipc-socket ~/.i3/i3-ipc.sock
----------------------------
You can then use the +i3-msg+ application to perform any command listed in
}
---------------------------
+=== i3bar command
+
+By default i3 will just pass +i3bar+ and let your shell handle the execution,
+searching your +$PATH+ for a correct version.
+If you have a different +i3bar+ somewhere or the binary is not in your +$PATH+ you can
+tell i3 what to execute.
+
+The specified command will be passed to +sh -c+, so you can use globbing and
+have to have correct quoting etc.
+
+*Syntax*:
+----------------------
+i3bar_command command
+----------------------
+
+*Example*:
+-------------------------------------------------
+bar {
+ i3bar_command /home/user/bin/i3bar
+}
+-------------------------------------------------
+
+[[status_command]]
=== Statusline command
i3bar can run a program and display every line of its +stdout+ output on the
*Example*:
-------------------------------------------------
-status_command i3status --config ~/.i3status.conf
+bar {
+ status_command i3status --config ~/.i3status.conf
+}
-------------------------------------------------
=== Display mode
You can have i3bar either be visible permanently at one edge of the screen
(+dock+ mode) or make it show up when you press your modifier key (+hide+
-mode).
+mode). The modifier key can be configured using the +modifier+ option.
The hide mode maximizes screen space that can be used for actual windows. Also,
i3bar sends the +SIGSTOP+ and +SIGCONT+ signals to the statusline process to
save battery power.
-The default is dock mode.
+The default is dock mode; in hide mode, the default modifier is Mod4 (usually
+the windows key).
*Syntax*:
----------------
mode <dock|hide>
+modifier <Modifier>
----------------
*Example*:
----------------
-mode hide
+bar {
+ mode hide
+ modifier Mod1
+}
----------------
+Available modifiers are Mod1-Mod5, Shift, Control (see +xmodmap(1)+).
+
+[[i3bar_position]]
=== Position
This option determines in which edge of the screen i3bar should show up.
*Example*:
---------------------
-position top
+bar {
+ position top
+}
---------------------
=== Output(s)
handle all outputs. Restricting the outputs is useful for using different
options for different outputs by using multiple 'bar' blocks.
+To make a particular i3bar instance handle multiple outputs, specify the output
+directive multiple times.
+
*Syntax*:
---------------
output <output>
-------------------------------
# big monitor: everything
bar {
- output HDMI2
- status_command i3status
+ # The display is connected either via HDMI or via DisplayPort
+ output HDMI2
+ output DP2
+ status_command i3status
}
# laptop monitor: bright colors and i3status with less modules.
bar {
- output LVDS1
- status_command i3status --config ~/.i3status-small.conf
- colors {
- background #000000
- statusline #ffffff
- }
+ output LVDS1
+ status_command i3status --config ~/.i3status-small.conf
+ colors {
+ background #000000
+ statusline #ffffff
+ }
}
-------------------------------
*Example*:
-------------------------
# disable system tray
-tray_output none
+bar {
+ tray_output none
+}
# show tray icons on the big monitor
-tray_output HDMI2
+bar {
+ tray_output HDMI2
+}
-------------------------
=== Font
*Example*:
--------------------------------------------------------------
-font -misc-fixed-medium-r-normal--13-120-75-75-C-70-iso10646-1
+bar {
+ font -misc-fixed-medium-r-normal--13-120-75-75-C-70-iso10646-1
+}
--------------------------------------------------------------
=== Workspace buttons
*Example*:
--------------------
-workspace_buttons no
+bar {
+ workspace_buttons no
+}
--------------------
=== Colors
*Example*:
--------------------------------------
-colors {
- background #000000
- statusline #ffffff
-
- focused_workspace #ffffff #285577
- active_workspace #888888 #222222
- inactive_workspace #888888 #222222
- urgent_workspace #ffffff #900000
+bar {
+ colors {
+ background #000000
+ statusline #ffffff
+
+ focused_workspace #ffffff #285577
+ active_workspace #ffffff #333333
+ inactive_workspace #888888 #222222
+ urgent_workspace #ffffff #900000
+ }
}
--------------------------------------
the following keybinding:
*Example*:
--------------------------------------------
-bindsym mod+x move workspace 3; workspace 3
--------------------------------------------
+--------------------------------------------------------
+bindsym mod+x move container to workspace 3; workspace 3
+--------------------------------------------------------
[[command_criteria]]
bindsym mod+g exec gimp
# Start the terminal emulator urxvt which is not yet startup-notification-aware
-bindsym mod+enter exec --no-startup-id urxvt
+bindsym mod+Return exec --no-startup-id urxvt
------------------------------
The +--no-startup-id+ parameter disables startup-notification support for this
=== Focusing/Moving containers
-To change the focus, use the focus command: +focus left+, +focus right+, +focus down+ and +focus up+.
+To change the focus, use the focus command: +focus left+, +focus right+, +focus
+down+ and +focus up+.
There are a few special parameters you can use for the focus command:
Sets focus to the last focused tiling container.
mode_toggle::
Toggles between floating/tiling containers.
+output::
+ Followed by a direction or an output name, this will focus the
+ corresponding output.
For moving, use +move left+, +move right+, +move down+ and +move up+.
-----------------------------------
focus <left|right|down|up>
focus <parent|child|floating|tiling|mode_toggle>
+focus output <<left|right|down|up>|output>
move <left|right|down|up> [<px> px]
-----------------------------------
# Focus last floating/tiling container
bindsym mod+g focus mode_toggle
+# Focus the output right to the current one
+bindsym mod+x focus output right
+
+# Focus the big output
+bindsym mod+x focus output HDMI-2
+
# Move container to the left, bottom, top, right:
bindsym mod+j move left
bindsym mod+k move down
To change to a specific workspace, use the +workspace+ command, followed by the
number or name of the workspace. To move containers to specific workspaces, use
-+move workspace+.
++move container to workspace+.
You can also switch to the next and previous workspace with the commands
+workspace next+ and +workspace prev+, which is handy, for example, if you have
workspace 1, 3, 4 and 9 and you want to cycle through them with a single key
-combination. Similarily, you can use +move workspace next+ and +move workspace
-prev+ to move a container to the next/previous workspace.
+combination. To restrict those to the current output, use +workspace
+next_on_output+ and +workspace prev_on_output+. Similarly, you can use +move
+container to workspace next+ and +move container to workspace prev+ to move a
+container to the next/previous workspace.
[[back_and_forth]]
To switch back to the previously focused workspace, use +workspace
To move a container to another xrandr output such as +LVDS1+ or +VGA1+, you can
use the +move output+ command followed by the name of the target output. You
may also use +left+, +right+, +up+, +down+ instead of the xrandr output name to
-move to the the next output in the specified direction.
+move to the next output in the specified direction.
*Examples*:
-------------------------
bindsym mod+2 workspace 2
...
-bindsym mod+Shift+1 move workspace 1
-bindsym mod+Shift+2 move workspace 2
+bindsym mod+Shift+1 move container to workspace 1
+bindsym mod+Shift+2 move container to workspace 2
...
# switch between the current and the previously focused one
Direction can be one of +up+, +down+, +left+ or +right+. The optional pixel
argument specifies by how many pixels a *floating container* should be grown or
-shrinked (the default is 10 pixels). The ppt argument means percentage points
+shrunk (the default is 10 pixels). The ppt argument means percentage points
and specifies by how many percentage points a *tiling container* should be
-grown or shrinked (the default is 10 percentage points).
+grown or shrunk (the default is 10 percentage points).
I recommend using the resize command inside a so called +mode+:
bindsym mod+Shift+e exit
----------------------------
+=== Scratchpad
+
+There are two commands to use any existing window as scratchpad window. +move
+scratchpad+ will move a window to the scratchpad workspace. This will make it
+invisible until you show it again. There is no way to open that workspace.
+Instead, when using +scratchpad show+, the window will be shown again, as a
+floating window, centered on your current workspace (using +scratchpad show+ on
+a visible scratchpad window will make it hidden again, so you can have a
+keybinding to toggle).
+
+As the name indicates, this is useful for having a window with your favorite
+editor always at hand. However, you can also use this for other permanently
+running applications which you don’t want to see all the time: Your music
+player, alsamixer, maybe even your mail client…?
+
+*Syntax*:
+---------------
+move scratchpad
+
+scratchpad show
+---------------
+
+*Examples*:
+------------------------------------------------
+# Make the currently focused window a scratchpad
+bindsym mod+Shift+minus move scratchpad
+
+# Show the first scratchpad window
+bindsym mod+minus scratchpad show
+
+# Show the sup-mail scratchpad window, if any.
+bindsym mod4+s [title="^Sup ::"] scratchpad show
+------------------------------------------------
+
[[multi_monitor]]
== Multiple monitors
this task. It was written in C with the goal of using as few syscalls as
possible to reduce the time your CPU is woken up from sleep states. Because
i3status only spits out text, you need to combine it with some other tool, like
-i3bar. Use a pipe to connect them: +i3status | i3bar -d+.
+i3bar. See <<status_command>> for how to display i3status in i3bar.
Regardless of which application you use to display the status line, you
want to make sure that it registers as a dock window using EWMH hints. i3 will
position the window either at the top or at the bottom of the screen, depending
-on which hint the application sets. With i3bar, you can use +-d+ or +-dbottom+
-for positioning it at the bottom and +-dtop+ to position it at the top of the
-screen.
+on which hint the application sets. With i3bar, you can configure its position,
+see <<i3bar_position>>.
=== Giving presentations (multi-monitor)
projects / i3 / i3 / blobdiff