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cdu (for Color du) is a perl script which call du and display a pretty histogram with optional colors which allow to imediatly see the directories which take disk space.
With no arguments, cdu reports the disk space for all subdirectories of the current directory.
With only one directory argument, cdu reports the disk space for all subdirectories of the given directory.
Accepts a regular expression as an argument and any matches found (stdin) will be highlighted (stdout) using shell color escape sequences. Good for looking through logs/monitoring console output/etc.
Colorcat adds ANSI color to terminal text according to Perl 5 regular expressions. Makes verbose log files or command-line programs easier to read. Includes an example script to add color to cvs's output (colorcvs).