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42
tools/cygwin/zforce
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42
tools/cygwin/zforce
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:
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#!/bin/sh
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# zforce: force a gz extension on all gzip files so that gzip will not
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# compress them twice.
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#
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# This can be useful for files with names truncated after a file transfer.
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# 12345678901234 is renamed to 12345678901.gz
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PATH="/cygnus/cygwin-b20/H-i586-cygwin32/bin:$PATH"; export PATH
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x=`basename $0`
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if test $# = 0; then
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echo "force a '.gz' extension on all gzip files"
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echo usage: $x files...
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exit 1
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fi
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res=0
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for i do
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if test ! -f "$i" ; then
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echo ${x}: $i not a file
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res=1
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continue
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fi
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test `expr "$i" : '.*[.-]z$'` -eq 0 || continue
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test `expr "$i" : '.*[.-]gz$'` -eq 0 || continue
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test `expr "$i" : '.*[.]t[ag]z$'` -eq 0 || continue
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if gzip -l < "$i" 2>/dev/null | grep '^defl' > /dev/null; then
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if test `expr "$i" : '^............'` -eq 12; then
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new=`expr "$i" : '\(.*\)...$`.gz
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else
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new="$i.gz"
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fi
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if mv "$i" "$new" 2>/dev/null; then
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echo $i -- replaced with $new
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continue
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fi
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res=1; echo ${x}: cannot rename $i to $new
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fi
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done
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exit $res
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