Compress - Description of Program

Description of Program

Files compressed by compress are typically given the extension ".Z" (modeled after the earlier pack program, that used the extension ".z"). Most tar programs will pipe their data through compress when given the command line option "-Z". (The tar program in its own does not compress; it just stores multiple files within one tape archive file.)

Files can be returned to their original state using uncompress. The usual action of uncompress is not merely to create an uncompressed copy of the file, but also to restore the timestamp and other attributes of the compressed file.

For files produced by compress on other systems, uncompress supports 9- to 16-bit compression.

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