Xresources is a user-level configuration dotfile, typically located at
It can be used to set X resources, which are configuration parameters for X client applications.
Among other things they can be used to:
- define terminal colours
- configure terminal preferences
- set DPI, anti-aliasing, hinting and other X font settings
- change the Xcursor theme
- theme xscreensaver
- configure low-level X applications like: rxvt-unicode , ,
Install the package.
Load resource file
Resources are stored in the X server, so have to only be read once. They are also accessible to remote X11 clients (such as those forwarded over SSH).
Load a resource file (such as the conventional
.Xresources), replacing any current settings:
$ xrdb ~/.Xresources
Load a resource file, and merge with the current settings:
$ xrdb -merge ~/.Xresources
If you are using a copy of the default xinitrc as your
.xinitrc it already merges
If you are using a custom
.xinitrc add the following line:
[[ -f ~/.Xresources ]] && xrdb -merge -I$HOME ~/.Xresources
~/.xinitrc. Otherwise, programs launched after xrdb may look for resources before it has finished loading them.
To see the default settings for your installed X11 apps, look in
Detailed information on program-specific resources is usually provided in the man page for the program. xterm's man page is a good example, as it contains a list of X resources and their default values.
To see the currently loaded resources:
$ xrdb -query -all
The syntax of an Xresources file is as follows:
and here is a real world example:
- The name of the application, such as xterm, xpdf, etc
- The classification used to group resources together. Class names are typically uppercase.
- The name of the resource whose value is to be changed. Resources are typically lowercase with uppercase concatenation.
- The actual value of the resource. This can be 1 of 3 types:
- Integer (whole numbers)
- Boolean (true/false, yes/no, on/off)
- String (a string of characters) (for example a word (
white), a color (
#ffffff), or a path (
- A dot (
.) is used to signify each step down into the hierarchy — in the above example we start at name, then descend into Class, and finally into the resource itself. A colon (
:) is used to separate the resource declaration from the actual value.
Question mark (
?) and asterisk (
*) can be used as wildcards, making it easy to write a single rule that can be applied to many different applications or elements.
? is used to match any single component name, while
* is used to represent any number of intervening components including none.
Using the previous example, if you want to apply the same font to all programs (not just XScreenSaver) that contain the class name
Dialog which contains the resource name
headingFont, you could write:
If you want to apply this same rule to all programs that contain the resource
headingFont, regardless of its class, you could write:
For more information about wildcard matching rules see.
To add a comment to your Xresources file, simply prefix it with an exclamation mark (
!), for example:
! The following rule will be ignored because it has been commented out !Xft.antialias: true
GNU CPP, installed to use this functionality.
To use different files for each application, use
#include in the main file. For example:
#include ".Xresources.d/xterm" #include ".Xresources.d/rxvt-unicode" #include ".Xresources.d/fonts" #include ".Xresources.d/xscreensaver"
If files fail to load, specify the directory to xrdb with the
-I parameter. For example:
xrdb -I$HOME ~/.Xresources
Getting resource values
If you want to get the value of a resource (for example if you want to use it in a bash script) you can useAUR:
$ xgetres xscreensaver.Dialog.headingFont -*-fixed-bold-r-*-*-*-100-*-*-*-*-iso8859-1
The following samples should provide a good understanding of how application settings can be modified using an Xresources file. See  for more examples. Refer to the man page of the application in question otherwise.
- Color output in console#Terminal emulators
- Cursor themes#X resources
- Font configuration#Applications without fontconfig support
- Using the Xdefaults File - An in-depth article on how X interprets the Xdefaults file