#!/bin/sh
function usage {
echo "usage: $0 org_txt new_txt file file..."
}
if [ $# -lt 3 ]
then
usage
exit 1
fi
org=$1
new=$2
shift
shift
for i in $*
do
printf "changing %-20s .... " $i
if [ -f $i ]
then
sed "s/$org/$new/g" > temp 2>/dev/null < $i && mv temp $i && printf "done! " || printf "error "
else
printf "notfile "
fi
done