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a collection of utilities for dealing with zipped and unzipped files transparently.

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:

Decompresses and copies files to standard output.
Decompresses and compares two files byte by byte.
Decompresses and compares two files line by line.
Decompresses and searches files for a regular expression.
Tests integrity of compressed files.


* Online manual


Download version 1.0 rc1 (developmental)
released on 18 January 2012


Related Projects


LicenseVerified byVerified onNotes
License:GPLv3orlaterJgay22 October 2009

Leaders and contributors

Antonio Diaz Diaz Maintainer

Resources and communication

AudienceResource typeURI
Bug tracking mailing listBug Trackinghttp://lists.nongnu.org/mailman/listinfo/zutils-bug

Software prerequisites

This entry (in part or in whole) was last reviewed on 19 March 2012.


"Bug tracking mailing list" is not in the list (General, Help, Bug Tracking, Support, Developer) of allowed values for the "Resource audience" property.

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