#!/bin/bash
######################################################################
# Program: sr
# Programmer: Void Main
# Syntax: sr oldtext newtext file(s)
# Search and replace text in files
#
# Example 1:
# $ cd /var/www/html
# $ sr ".kicks-ass.net" ".is-a-geek.net" *.html
#
# Example 2:
# $ cd /var/www/html
# $ find -name '*.html' | xargs sr ".kicks-ass.net" ".is-a-geek.net"
#
# Make sure you have good backups in case you change more
# than you intended. For example if you want to change "tick"
# to "tack" it would also change "ticket" to "tacket" so you
# need to think a little before running.
######################################################################

ARGC=$#
OLD="$1"
NEW="$2"
FILE="$3"
shift
shift

[ $ARGC -ge 3 -a -f "$FILE" ] && 
   perl -i -p -e "s/$OLD/$NEW/g;" $* ||
   echo "Syntax: sr oldtext newtext file(s)
Search and replace text in files"