Version 1.0-rc3 of zutils is ready for testing here

The md5sums are:
82b40d9e87c161dba70664007416e767  zutils-1.0-rc3.tar.gz
2a1c6ea7a2f62bde43474d0e39d727c8  zutils-1.0-rc3.tar.lz

Please, test it and report any bugs you find.

Zutils is a collection of utilities able to deal with any combination of compressed and non-compressed files transparently. If any given file, including standard input, is compressed, its decompressed content is used. Compressed files are decompressed on the fly; no temporary files are created.

These utilities are not wrapper scripts but safer and more efficient C++ programs. In particular the "--recursive" option is very efficient in those utilities supporting it.

The provided utilities are zcat, zcmp, zdiff, zgrep and ztest.
The supported compressors are bzip2, gzip, lzip and xz.

Zcat, zcmp, zdiff and zgrep are improved replacements for the shell scripts provided with GNU gzip. Ztest is unique to zutils.

The homepage is at

This version is also available in lzip format. If your distro doesn't yet distribute the lzip program, you can download it from

Changes in this version:

  * Minor fixes.

* The new option "--format", which forces the use of a given compression format, has been added to all utilities.

  * The target "install-bin" has been added to the Makefile.

Antonio Diaz, zutils author and maintainer.

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