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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 13:35:06 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 13:35:06 +0000 |
commit | f9be52fa859528b0439964589d03d85796275cdb (patch) | |
tree | 174763c6a2c37083bf3e81c8a9aca0b2eb40c9cc /README | |
parent | Initial commit. (diff) | |
download | zutils-f9be52fa859528b0439964589d03d85796275cdb.tar.xz zutils-f9be52fa859528b0439964589d03d85796275cdb.zip |
Adding upstream version 1.10.upstream/1.10upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | README | 47 |
1 files changed, 47 insertions, 0 deletions
@@ -0,0 +1,47 @@ +Description + +Zutils is a collection of utilities able to process any combination of +compressed and uncompressed files transparently. If any file given, +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 option '--recursive' is very efficient in +those utilities supporting it. + +The utilities provided are zcat, zcmp, zdiff, zgrep, ztest, and zupdate. +The formats supported are bzip2, gzip, lzip, and xz. +Zutils uses external compressors. The compressor to be used for each format +is configurable at runtime. + +zcat, zcmp, zdiff, and zgrep are improved replacements for the shell scripts +provided by GNU gzip. ztest is unique to zutils. zupdate is similar to +gzip's znew. + +NOTE: Bzip2 and lzip provide well-defined values of exit status, which makes +them safe to use with zutils. Gzip and xz may return ambiguous warning +values, making them less reliable back ends for zutils. + +FORMAT NOTE 1: The option '--format' allows the processing of a subset +of formats in recursive mode and when trying compressed file names: +'zgrep foo -r --format=bz2,lz somedir somefile.tar'. + +FORMAT NOTE 2: If the option '--force-format' is given, the files are +passed to the corresponding decompressor without verifying their format, +allowing for example the processing of compress'd (.Z) files with gzip: +'zcmp --force-format=gz file.Z file.lz'. + +LANGUAGE NOTE: Uncompressed = not compressed = plain data; it may never have +been compressed. Decompressed is used to refer to data which have undergone +the process of decompression. + + +Copyright (C) 2009-2021 Antonio Diaz Diaz. + +This file is free documentation: you have unlimited permission to copy, +distribute, and modify it. + +The file Makefile.in is a data file used by configure to produce the +Makefile. It has the same copyright owner and permissions that configure +itself. |