Command manuals for compression

bzip2, bunzip2 - a block-sorting file compressor, v1.0.8

gzip, gunzip, zcat - compress or expand files

lz - gunzips and shows a listing of a gzip'd tar'd archive

tar - an archiving utility

unzip - list, test and extract compressed files in a ZIP archive

xz, unxz, xzcat, lzma, unlzma, lzcat - Compress or decompress .xz and .lzma files

zip - package and compress (archive) files

zlib - compression/decompression library