term% cat index.txt PACK(1) General Commands Manual PACK(1)
NAME
pack, pcat, unpack - compress and expand files
SYNOPSIS
pack [ - ] file ...
pcat [ file ] ...
unpack file ...
DESCRIPTION
Pack attempts to compress the files and places the results in corre‐
sponding files named file.z with the same access modes, dates, and
owner as the originals. Successfully packed files are removed.
Unpack reverses the process.
Pcat unpacks files to the standard output by analogy with cat(1).
The .z suffix may be omitted from the name of the input file for unpack
or pcat.
Pack encodes individual characters in a Huffman code. Option - causes
statistics of the encoding to be printed. The option toggles on and
off at each appearance among the list of files.
DIAGNOSTICS
The return value of pack, unpack, or pcat is the number of files it
failed to process. No packing happens when the input can't be read or
appears to be packed already, the output file name exists or is too
long or can't be created, or the input has links or is a directory.
PACK(1)