【Shell实战】批量在多台服务器上执行命令

 1 #!/bin/bash
 2 
 3 # ==========================================
 4 # 功能：批量在多台服务器上执行命令
 5 # 方法：./batch_cmd_manager.sh <cmd_to_exec>
 6 # 返回：各服务器执行命令返回的结果列表
 7 # 前提：在待执行命令的各个服务器上设置了免密登录
 8 # 警告：禁止执行删除、格式化等这样的可能造成严重后果的命令
 9 # 日期：2018-04-23
10 #   By：HackHan
11 # 其他：设置免密登录参考：https://blog.csdn.net/zoombinde/article/details/51902208
12 # 文件：batch_cmd_manager.sh
13 # ==========================================
14 
15 
16 do_command()
17 {
18         hosts=`sed -n '/^[^#]/p' hostlist.txt`
19         for host in $hosts
20                 do
21                         echo ""
22                         echo HOST $host
23                         ssh $host "$@"
24                 done
25         return 0
26 }
27 
28 
29 if [ $# != 1 ]
30 then
31         echo "=========================================="
32         echo "功能：批量在多台服务器上执行命令"
33         echo "方法：$0 "<cmd_to_exec>""
34         echo "返回：各服务器执行命令返回的结果列表"
35         echo "前提：在待执行命令的各个服务器上设置了免密登录"
36         echo "警告：禁止执行删除、格式化等这样的可能造成严重后果的命令"
37         echo "=========================================="
38         exit 1
39 fi
40 
41 
42 echo "确定要执行命令？[yes/no]：$@ "
43 read to_run
44 
45 local_ip=10.143.2.4
46 
47 if [ $to_run = "yes" -o $to_run = "YES" -o $to_run = "y" -o $to_run = "Y" ]
48 then
49         echo ""
50         echo -e "