http://bbs.csdn.net/topics/391879580
[zhongyunde@linux-hcc3 ~/6183_hcc]$vi dd.txt
ddd
#begin dd
here is need to be repalce content！
#end
ddd
ddd
#begin dd
here is need to be repalce content！
#end
ddd
[zhongyunde@linux-hcc3 ~/6183_hcc]$sed -i '/^#begin dd/,/#end$/d ' dd.txt
[zhongyunde@linux-hcc3 ~/6183_hcc]$cat dd.txt
ddd
[zhongyunde@linux-hcc3 ~/6183_hcc]$cat dd.txt
ddd
ddd
shell 脚本替换文件中某个字符串
1、将当前目录下包含jack串的文件中，jack字符串替换为tom
sed -i "s/jack/tom/g" `grep "jack" -rl ./`
2、将某个文件中的jack字符串替换为tom
sed -i "s/jack/tom/g" test.txt
参考连接：http://blog.csdn.net/lizhi200404520/article/details/7968483