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Linux in a Nutshell

This directory of Linux commands is from Linux in a Nutshell, 5th Edition.

Click on any of the 687 commands below to get a description and list of available options. All links in the command summaries point to the online version of the book on Safari Bookshelf.

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dircolors

dircolors [options] [file]

Set the color options for ls by changing the LS_COLORS environment variable. If you specify a file, dircolors will read it to determine which colors to use. Otherwise, it will use a default set of colors.

Options

The program takes three options in addition to the standard --help and --version flags:

-p, --print-database

Display the default colors. You can copy this information into a file and change it to suit your preferences, and then run the program with the file as its argument to set the colors to your new values.

-c, --csh, --c-shell

Use csh (C shell) syntax when setting the LS_COLORS variable.

-b, --sh, --bourne-shell

Use the Bourne shell syntax when setting the LS_COLORS variable.