工作中有时需要对比文件是否一致，通过以下脚本可以实现(比较简单)：分享出来，希望能帮助到有同样需求的朋友~

复制代码 代码如下:
#!/bin/bash
#对比服务器上文件是否一样
# Richard shen 2012/07/08
LC_ALL='en_US.UTF-8'
basedir=`dirname $0`
HOST=$basedir/host.txt
PASSWD="abcd" #密码
FILE=$basedir/file.txt
LOG=$basedir/tmp.log
>$LOG
[ ! -f /usr/bin/nc ] && yum -y install nc
[ ! -f /usr/bin/expect ] && yum -y install expect
auto_smart_ssh () {
expect -c "set timeout -1;
spawn ssh -o StrictHostKeyChecking=no $2 ${@:3};
expect {
*assword:* {send -- $1\r;
expect {
*denied* {exit 2;}
eof
}
}
eof {exit 1;}
}
"
# return $?
}
num=0
for file in `cat $FILE`;do
for host in `cat $HOST`;do
[[ $host =~ "^#" ]] && continue
let 'num++'
if ! /usr/bin/nc -w 1 $host 22 > /dev/null; then
echo " ssh connect failed." | tee -a $LOG
continue
else
echo -e "\e[32m$host ($FILE) MD5 compared files...\e[0m"
auto_smart_ssh $PASSWD root@$host md5sum $file | grep $file | grep -v StrictHostKeyChecking | tee -a $LOG
fi
done
echo "----------------------------------------------------------"
done

对比的IP地址写入host.txt，需要对比的文件(支持多个文件)写入file.txt
输出结果为:
复制代码 代码如下:
192.168.113.108 (./file.txt) MD5 compared files...
c84509bb3b109506935dba56b667a136 /data/server/pared files...
d2c965f5222ff47432313c76863f428d /data/server/www/apps/ad/sky.html