compress-compress, uncompress, zcat compress, uncompress files, or display expanded files

compress ”compress, uncompress, zcat compress, uncompress files, or display expanded files

 compress [ cfv ] [ b bits ] [ filename... ] uncompress [ cv ] [ filename... ] zcat [ filename... ] 

compress reduces the size of the named files using adaptive Lempel-Ziv coding. Whenever possible, each file is replaced by one with a .Z extension. The ownership modes, access time, and modification time will stay the same. If no files are specified, the standard input is compressed to the standard output.

Example A.14.

 1   compress -v book  book:Compression:35.07% -- replaced with book.Z  2   ls  book.Z  

EXPLANATION

1. Compresses the book into a file called book.Z and displays the percentage that the file was compressed and its new name .