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[archivers] xzize: improve doc

master
Matteo Cypriani 2 years ago
parent
commit
4147272b47
  1. 10
      archivers/README.md
  2. 15
      archivers/xzize.sh

10
archivers/README.md

@ -43,11 +43,13 @@ compressed file to XZ (with default compression level).
Known compression formats are GZip (.gz), BZip2 (.bz2), LZMA (.lzma), and
Lempel-Ziv (.Z). Short tar compressed suffixes are also allowed: .tgz, .tbz,
.tb2, .tlz, .taz.
.tb2, .tlz, .taz (and the output file's extension will be .txz).
In case of recompression, the original compressed file is kept. In case of
compression (i.e. when the suffix of the file does not correspond to a known
compression format), the original uncompressed file is removed.
In case of recompression, the original compressed file is kept (so you can
compare input and output file sizes and decide to keep the original or the
recompressed file). In case of compression (i.e. when the suffix of the file
does not correspond to a known compression format), the original uncompressed
file is removed.
**Note**: the atool package provides the `arepack` command, which can
recompress to several formats and not only to XZ. `xzize` has the advantage to

15
archivers/xzize.sh

@ -8,13 +8,14 @@
# To Public License, Version 2, as published by Sam Hocevar. See
# http://sam.zoy.org/wtfpl/COPYING for more details.
#
# This script recompresses to XZ (with maximum compression level) a
# GZip (.gz, .tgz), BZip2 (.bz2, .tbz, .tb2), LZMA (.lzma, .tlz), and
# Lempel-Ziv (.Z, .taz) compressed file. The original file is keeped.
# If the file extension does not correspond to a known compression
# format, the file is compressed to XZ. In that case, the original
# file is removed.
# If the file is already XZ compressed (.xz, .txz), nothing is done.
# This script recompresses to XZ one or several GZip (.gz, .tgz), BZip2 (.bz2,
# .tbz, .tb2), LZMA (.lzma, .tlz), or Lempel-Ziv (.Z, .taz) compressed file(s).
# The original files are kept.
#
# If a file extension does not correspond to a known compression format, that
# file is compressed to XZ. In that case, the original file is removed.
#
# If the file is already XZ-compressed (.xz, .txz), nothing is done.
#set -x
set -u

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