X window server's resource database utility for Unix-like systems - xrdb

TLDR pages
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X window server’s resource database utility for Unix-like systems. More information: XRDB.

  • Start xrdb in interactive mode:

xrdb

  • Load values (e.g. style rules) from a resource file:

xrdb -load {{~/.Xresources}}

  • Query the resource database and print currently set values:

xrdb -query