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Member "duff-0.5.2/join-duplicates.sh" (10 Apr 2011, 871 Bytes) of package /linux/privat/old/duff-0.5.2.tar.gz:

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    1 #!/bin/sh
    2 #
    3 # Example script for duff(1).
    4 #
    5 # Copyright (c) 2005 Ross Newell
    6 #
    7 # Modified Jan 7, 2006 by Camilla Berglund <elmindreda@elmindreda.org>
    8 #
    9 # Uses duff to find duplicate physical files and changes them into hard links
   10 # to a single physical file, thus saving disk space.  Use with care.
   11 #
   12 
   13 if [ "$1" == '' ]; then
   14   echo "usage: `basename $0` directory"
   15   exit 1
   16 fi
   17 
   18 duff -r '-f#' -z -p -P "$1" |
   19 (
   20   while read file 
   21   do
   22     if [ "$file" == '#' ]; then
   23       first=''
   24     else
   25       if [ "$first" == '' ]; then
   26         first="$file"
   27       else
   28     temp=`mktemp -p \`dirname $file\``
   29 
   30     mv "$file" "$temp" && \
   31     ln "$first" "$file" && \
   32     touch --reference="$temp" "$file" && \
   33     rm "$temp"
   34 
   35     if [ $? != 0 ]; then
   36       echo "`basename $0`: $file: failed to join with $first"
   37       echo "`basename $0`: $file: may exist as $temp"
   38       exit 1
   39     fi
   40       fi
   41     fi
   42   done
   43 )
   44