lzwin(1) —

NAME

tolzwin, fromlzwin − compress and expand data

SYNOPSIS

tolzwin [ −f ] [ −o outfile ] [ name ... ]
fromlzwin [ −o outfile ] [ name ... ]

DESCRIPTION

Tolzwin reduces the size of the named files, using modified Lempel-Ziv coding. Whenever possible, each file is replaced by one with the extension .lzw, while keeping the same ownership modes, access and modification times. If no files are specified, the standard input is compressed to the standard output. Compressed files can be restored to their original form using fromlzwin.

The −f option will force compression of name, even if it does not actually shrink the name.lzw file.

The −o option allows (un)compressing to outfile, preserving ownerships and timestamps, but without removing the original source file.

If an error occurs, exit status is 1, else if the last file was not compressed because it became larger, the status is 2; else the status is 0.

DIAGNOSTICS

Usage: tolzwin [−f] [−o output] [file ...]

Invalid options were specified on the command line.

ADDED VALUE

This entry, supplied by SunSoft, Inc., is an extension of UNIX System V.