NAME

ancient - decompression routines for ancient formats

SYNOPSIS

ancient [identify|verify|decompress|scan] inputfile optionaloutputfile

DESCRIPTION

This manual page documents briefly the ancient command.

ancient is a collection of decompression routines for old formats popular in the Amiga, Atari computers and some other systems from 80's and 90's as well as some that are currently used which were used in a some specific way in these old systems.
For simple usage both a simple command line application as well as a simple API to use the decompressors are provided. The compression algorithm is automatically detected in most cases, however there are some corner cases where it is not entirely reliable due to weaknesses in the old format used.

OPTIONS

These programs DO NOT follow the usual GNU command line syntax.

identify packed_input_file

Identifies compression used in a file.

verify packed_input_file unpacked_comparison_file

Verifies decompression against known good unpacked file.

decompress packed_input_file output_file

Decompresses single file

scan input_dir output_dir

Scans input directory recursively and stores all found. Known compressed streams to separate files in output directory.

SEE ALSO

unxz(1), unpigz(1).