Reduces the size of one or more
files using adaptive Lempel-Ziv coding and move to
.Z. Restore with uncompress or zcat.
With a filename of -, or with no
files, compress reads standard input.
Unisys claims a patent on the algorithm used by compress. Today, gzip is generally preferred for file compression.
compress doesn't preserve resource forks or HFS metadata when compressing files that contain them.
Limit the number of bits in coding to
n is 9–16; 16 is the default. A lower
n produces a larger, less densely compressed file.
Write to the standard output (don't change files).
Compress unconditionally; i.e., don't prompt before overwriting files. Also, compress files even if the resulting file would actually be larger.
Print the resulting percentage of reduction for