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acp.sh
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Editing: acp.sh
#!/bin/sh # $Id: acp.sh 2086 2011-10-27 05:18:01Z jkoshy $ # This script is adapted from Jan Psota's Tar Comparison Program(TCP). n=3 # number of repetitions AR="bsdar gnuar" # ar archivers to compare test $# -ge 2 || { echo "usage: $0 source_dir where_to_place_archive [where_to_extract_it]" exit 0 } THISDIR=`/bin/pwd` src=$1 dst=$2/acp.a ext=${3:-$2}/acptmp test -e $dst -o -e /tmp/acp \ && { echo "$dst or /tmp/acp exists, exiting"; exit 1; } mkdir -p $ext || exit 1 show_result () { awk -vL="`du -k $dst`" '{printf "%s\t%s\t%s\%10.1d KB/s\n", $1, $3, $5, ($1>0?L/$1:0)}' /tmp/acp | sort | head -n 1 } test -d $src || { echo "'$src' is not a directory"; exit 1; } # ar versions for ar in $AR; do echo -n "$ar: "; $ar -V | head -n 1; done echo echo "best time of $n repetitions" echo -n " src=$src, " echo -n "`du -sh $src | awk '{print $1}'`" echo -n " in " echo "`find $src | wc -l` files" echo " archive=$dst, extract to $ext" echo "program operation real user system speed" for op in "cru $dst $src/*" "t $dst" "x `basename $dst`"; do for ar in $AR; do echo -n "$ar " echo $op | grep -q ^cr && echo -n "create " echo $op | grep -q ^t && echo -n "list " echo $op | grep -q ^x && echo -n "extract " num=0 while [ $num -lt $n ]; do echo $op | grep -q ^cr && rm -f $dst echo $op | grep -q ^x && { rm -rf $ext; mkdir -p $ext cp $dst $ext; cd $ext; } sync time $ar $op > /dev/null 2>> /tmp/acp echo $op | grep -q ^x && cd $THISDIR num=`expr $num + 1` done show_result rm -rf /tmp/acp done echo done rm -rf $ext $dst rm -f /tmp/acp
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