xrdb:tldr:c0100
The "xrdb" command is short for "X Resource Database." It is a command-line tool used in Unix-based systems with X Window System to manage and query the X resources.
X resources are configuration settings that control the look and behavior of graphical elements in an X Window System environment. They are stored in a database known as the "X Resource Database."
The "xrdb" command allows you to:
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Merge resource files: You can use "xrdb" to merge resource files (usually with the ".Xresources" or ".Xdefaults" extension) into the X Resource Database. These files contain sets of resource settings for applications.
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Query or retrieve resources: You can use "xrdb" to query the X Resource Database and retrieve the values of specific resources, either by particular resource names or by specific class and instance names.
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Set or update resources: You can use "xrdb" to set or update resource values in the X Resource Database either directly or by merging a resource file containing updated settings.
By utilizing the "xrdb" command, users can easily manage and modify the appearance and behavior of applications running in an X Window System environment according to their preferences.