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zutils 1.10 Utilities that transparently operate on compressed files

Zutils is a collection of utilities able to process any combination of compressed and uncompressed files transparently. If any given file, including standard input, is compressed, its decompressed content is used instead.

zcat, zcmp, zdiff, and zgrep are improved replacements for the shell scripts provided by GNU gzip. ztest tests the integrity of supported compressed files. zupdate recompresses files with lzip, similar to gzip's znew.

Supported compression formats are bzip2, gzip, lzip, and xz. Zutils uses external compressors: the compressor to be used for each format is configurable at run time, and must be installed separately.