Commands Reference, Volume 5

uncompress Command

Syntax

uncompress [ -c ] [ -F ] [ -f ] [ -n ] [ -q ] [ -V ] [ File ... ]

The uncompress command restores original files that were compressed by the compress command. Each compressed file specified by the File parameter is removed and replaced by an expanded copy. The expanded file has the same name as the compressed version, but without the .Z extension. If the user has root authority, the expanded file retains the same owner, group, modes, and modification time as the original file. If the user does not have root authority, the file retains the same modes and modification time, but acquires a new owner and group. If no files are specified, standard input is expanded to standard output.

Flags

-c	Write to standard output. No files are changed.
-f or -F	Forces expansion. The -f and -F flags are interchangeable. Overwrites the file if it already exists. The system does not prompt the user that an existing file will be overwritten. File size may not actually shrink.
-n	Omits the compressed file header from the compressed file.
-q	Suppresses the display of compression statistics generated by the -v flag. If several -v and -q flags are on the same command line, the last one specified controls the display of the statistics.
-V	Writes the current version and compile options to standard error.