perform data compression and decompression
compatible with the Unix
which uses a hybrid Lempel-Ziv 1977 and Huffman compression algorithm
If no arguments are given
replacing it by a file of the same
name with the a
If no files are given, standard input
and standard output are used.
is a single decimal digit between 1 and 9;
higher numbers give better compression.
to report the compression ratio of each file that
performs the opposite operation to
(which must have a
suffix) is uncompressed, and replaced
by a file of the same name with the
suffix removed. If no files are given,
standard input and standard output are used.