#!/bin/sh SERVER=$1; IP="127.0.0.1"; LINFILE="./1.txt"; sed -i 's/'${IP}'/'${SERVER}'/g' $LINFILE; exit 0 1.txt előtte: 127.0.0.1 192.168.122.1 utána (1.sh 192.168.10.10): 192.168.10.10 192.168.122.1