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d321ec9761
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c661ccd8eb
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@ -43,13 +43,11 @@ compressed file to XZ (with default compression level).
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Known compression formats are GZip (.gz), BZip2 (.bz2), LZMA (.lzma), and
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Lempel-Ziv (.Z). Short tar compressed suffixes are also allowed: .tgz, .tbz,
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.tb2, .tlz, .taz (and the output file's extension will be .txz).
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.tb2, .tlz, .taz.
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In case of recompression, the original compressed file is kept (so you can
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compare input and output file sizes and decide to keep the original or the
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recompressed file). In case of compression (i.e. when the suffix of the file
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does not correspond to a known compression format), the original uncompressed
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file is removed.
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In case of recompression, the original compressed file is kept. In case of
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compression (i.e. when the suffix of the file does not correspond to a known
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compression format), the original uncompressed file is removed.
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**Note**: the atool package provides the `arepack` command, which can
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recompress to several formats and not only to XZ. `xzize` has the advantage to
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@ -1,6 +1,6 @@
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#!/bin/sh
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#
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# xzize.sh, Copyright © 2010, 2019 Matteo Cypriani
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# xzize.sh, Copyright © 2010 Matteo Cypriani
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#
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# This program is free software. It comes without any warranty, to
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# the extent permitted by applicable law. You can redistribute it
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@ -8,159 +8,156 @@
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# To Public License, Version 2, as published by Sam Hocevar. See
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# http://sam.zoy.org/wtfpl/COPYING for more details.
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#
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# This script recompresses to XZ one or several GZip (.gz, .tgz), BZip2 (.bz2,
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# .tbz, .tb2), LZMA (.lzma, .tlz), or Lempel-Ziv (.Z, .taz) compressed file(s).
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# The original files are kept.
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#
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# If a file extension does not correspond to a known compression format, that
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# file is compressed to XZ. In that case, the original file is removed.
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#
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# If the file is already XZ-compressed (.xz, .txz), nothing is done.
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# This script recompresses to XZ (with maximum compression level) a
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# GZip (.gz, .tgz), BZip2 (.bz2, .tbz, .tb2), LZMA (.lzma, .tlz), and
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# Lempel-Ziv (.Z, .taz) compressed file. The original file is keeped.
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# If the file extension does not correspond to a known compression
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# format, the file is compressed to XZ. In that case, the original
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# file is removed.
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# If the file is already XZ compressed (.xz, .txz), nothing is done.
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#set -x
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set -u
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# Destination file suffix when source file name suffix is a
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# 3-letter compressed tar suffix:
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readonly TAR_XZ_EXT=txz
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TAR_XZ_EXT=txz
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# Default compression level:
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COMPRESSION_LEVEL=
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test_extension()
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{
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FILE="$1"
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EXTENSION="$2"
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NEWEXTENSION=xz
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if [ $# -eq 3 ] ; then
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NEWEXTENSION="$3"
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fi
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FILE="$1"
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EXTENSION="$2"
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NEWEXTENSION=xz
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if [ $# -eq 3 ] ; then
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NEWEXTENSION="$3"
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fi
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BASE="$(echo "$FILE" | sed "s/\.${EXTENSION}//")"
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if [ "$BASE" != "$FILE" ] ; then
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DEST="$BASE".$NEWEXTENSION
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return 0
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fi
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BASE="$(basename "$FILE" ."$EXTENSION")"
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if [ "$BASE" != "$FILE" ] ; then
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DEST="$BASE".$NEWEXTENSION
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return 0
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fi
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DEST="$FILE"
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return 1
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DEST="$FILE"
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return 1
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}
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do_recompress()
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{
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if [ -e "$DEST" ] ; then
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echo "Skipping source file « $SOURCE »: destination file « $DEST » already exists!" >&2
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return 0
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fi
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echo "Recompressing « $SOURCE » to « $DEST »…"
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$ACTION -c "$SOURCE" | xz $COMPRESSION_LEVEL >"$DEST"
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return $?
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if [ -e "$DEST" ] ; then
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echo "Skipping source file « $SOURCE »: destination file « $DEST » already exists!" >&2
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return 0
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fi
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echo "Recompressing « $SOURCE » to « $DEST »…"
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$ACTION -c "$SOURCE" | xz $COMPRESSION_LEVEL >"$DEST"
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return $?
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}
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## Verify number of arguments ##
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if [ $# -lt 1 ] ; then
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echo "$0 requires at least one argument!" >&2
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exit 2
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echo "$0 requires at least one argument!" >&2
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exit 2
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fi
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## Process files ##
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for SOURCE in "$@" ; do
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# Does source file exist?
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if [ ! -e "$SOURCE" ] ; then
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echo "Skipping source file « $SOURCE »: does not exist!" >&2
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continue
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fi
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# Does source file exist?
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if [ ! -e "$SOURCE" ] ; then
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echo "Skipping source file « $SOURCE »: does not exist!" >&2
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continue
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fi
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# Is source file regular?
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if [ ! -f "$SOURCE" ] ; then
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echo "Skipping source file « $SOURCE »: is not a regular file!" >&2
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continue
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fi
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# Does source file is regular?
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if [ ! -f "$SOURCE" ] ; then
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echo "Skipping source file « $SOURCE »: is not a regular file!" >&2
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continue
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fi
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# GZip
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if test_extension "$SOURCE" gz ; then
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ACTION="gunzip"
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do_recompress
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continue
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fi
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# GZip
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if test_extension "$SOURCE" gz ; then
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ACTION=gunzip
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do_recompress
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continue
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fi
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# GZipped Tar (.tgz)
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if test_extension "$SOURCE" tgz $TAR_XZ_EXT ; then
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ACTION="gunzip"
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do_recompress
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continue
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fi
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# GZipped Tar (.tgz)
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if test_extension "$SOURCE" tgz $TAR_XZ_EXT ; then
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ACTION=gunzip
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do_recompress
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continue
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fi
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# BZip2
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if test_extension "$SOURCE" bz2 ; then
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ACTION="bunzip2"
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do_recompress
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continue
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fi
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# BZip2
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if test_extension "$SOURCE" bz2 ; then
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ACTION=bunzip2
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do_recompress
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continue
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fi
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# BZipped Tar (.tbz)
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if test_extension "$SOURCE" tbz $TAR_XZ_EXT ; then
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ACTION="bunzip2"
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do_recompress
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continue
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fi
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# BZipped Tar (.tbz)
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if test_extension "$SOURCE" tbz $TAR_XZ_EXT ; then
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ACTION=bunzip2
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do_recompress
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continue
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fi
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# BZipped Tar (.tb2)
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if test_extension "$SOURCE" tb2 $TAR_XZ_EXT ; then
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ACTION="bunzip2"
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do_recompress
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continue
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fi
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# BZipped Tar (.tb2)
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if test_extension "$SOURCE" tb2 $TAR_XZ_EXT ; then
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ACTION=bunzip2
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do_recompress
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continue
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fi
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# LZMA
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if test_extension "$SOURCE" lzma ; then
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ACTION="unlzma"
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do_recompress
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continue
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fi
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# LZMA
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if test_extension "$SOURCE" lzma ; then
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ACTION=unlzma
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do_recompress
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continue
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fi
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# LZMA compressed Tar (.tlz)
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if test_extension "$SOURCE" tlz $TAR_XZ_EXT ; then
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ACTION="unlzma"
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do_recompress
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continue
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fi
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# LZMA compressed Tar (.tlz)
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if test_extension "$SOURCE" tlz $TAR_XZ_EXT ; then
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ACTION=unlzma
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do_recompress
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continue
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fi
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# Compress
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if test_extension "$SOURCE" Z ; then
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ACTION="uncompress"
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do_recompress
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continue
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fi
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# Compress
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if test_extension "$SOURCE" Z ; then
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ACTION=uncompress
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do_recompress
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continue
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fi
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# Compressed Tar (.taz)
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if test_extension "$SOURCE" taz $TAR_XZ_EXT ; then
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ACTION="uncompress"
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do_recompress
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continue
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fi
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# Compressed Tar (.taz)
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if test_extension "$SOURCE" taz $TAR_XZ_EXT ; then
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ACTION=uncompress
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do_recompress
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continue
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fi
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# XZ
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if test_extension "$SOURCE" xz ; then
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echo "Skipping source file « $DEST »: has already .xz suffix!" >&2
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continue
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fi
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# XZ
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if test_extension "$SOURCE" xz ; then
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echo "Skipping source file « $DEST »: has already .xz suffix!" >&2
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continue
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fi
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# XZipped Tar (.txz)
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if test_extension "$SOURCE" txz $TAR_XZ_EXT ; then
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echo "Skipping source file « $DEST »: seems to be a XZipped Tar archive (.txz suffix)!" >&2
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continue
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fi
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# XZipped Tar (.txz)
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if test_extension "$SOURCE" txz $TAR_XZ_EXT ; then
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echo "Skipping source file « $DEST »: seems to be a XZipped Tar archive (.txz suffix)!" >&2
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continue
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fi
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# Uncompressed file: fall back to simple compression
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echo "Compressing « $SOURCE » to xz…"
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xz $COMPRESSION_LEVEL "$SOURCE"
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# Uncompressed file: fall back to simple compression
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echo "Compressing « $SOURCE » to xz…"
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xz $COMPRESSION_LEVEL "$SOURCE"
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done
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# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
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@ -1,6 +1,6 @@
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#!/bin/sh
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#
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# tabssh.sh, Copyright © 2013, 2019 Matteo Cypriani <mcy@lm7.fr>
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# tabssh.sh, Copyright © 2013 Matteo Cypriani <mcy@lm7.fr>
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# (Formerly named cluster-ssh.sh)
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#
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# This program is free software. It comes without any warranty, to
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@ -56,14 +56,9 @@ elif [ $# -ne 1 ] ; then
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fi
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# Check dependencies
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TMUX_CMD=$(command -v tmux)
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SCREEN_CMD=$(command -v screen)
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if [ -n "$TMUX_CMD" ] ; then
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echo "tmux is available, we'll be using it."
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elif [ -n "$SCREEN_CMD" ] ; then
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echo "tmux is not available, we'll be using GNU screen instead."
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else
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err "Either tmux or GNU screen is required by this script."
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SCREEN=$(command -v screen)
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if [ -z "$SCREEN" ] ; then
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err "GNU screen is required by this script."
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exit $EXIT_DEPENDENCY
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fi
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@ -87,10 +82,6 @@ fi
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# Create the screen tabs
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while read -r HOST ; do
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SSH="ssh ${LOGIN}${HOST}"
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if [ -n "$TMUX_CMD" ] ; then
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$TMUX_CMD new-window -d -n "$SSH" -- "$SSH"
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else
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# shellcheck disable=SC2086
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$SCREEN_CMD -t "$SSH" $SSH
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fi
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# shellcheck disable=SC2086
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$SCREEN -t "$SSH" $SSH
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done <"$HOSTS"
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