Function Description: Execute commands on multiple servers in batches
1 # !/bin/bash 2 3 # ========================================= == 4 #Function : Execute commands on multiple servers in batches 5 #Method : ./batch_cmd_manager.sh <cmd_to_exec> 6 #Return : The list of results returned by each server executing the command 7 #Premise : On each server where the command is to be executed Password -free login is set8 #Warning : It is forbidden to execute commands such as deletion , formatting , etc. that may cause serious consequences //blog.csdn.net/zoombinde/article/details/51902208 12 #File : 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 " Function: Execute commands on multiple servers in batches " 33 echo " Method: $0 \"<cmd_to_exec>\" " 34 echo " Return: list of results returned by each server executing commands " 35 echo " Premise: Password-free login is set on each server where the command is to be executed " 36 echo " Warning: It is forbidden to execute commands such as deletion and formatting that may cause serious consequences " 37 echo "==========================================" 38 exit 1 39 fi 40 41 42 echo " Are you sure you want to execute the command? [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 " \033[31mExecute command: $@ \033[0m " 51 do_command "$@" 52 echo "" 53 echo HOST $local_ip 54 $@ 55 else 56 echo "取消执行命令！" 57 fi 58 59 echo "" 60 echo "=========================================="
The file hostlist.txt that holds the list of IP addresses:
# List of IP addresses, one xx.xx.xx.xx per line xx.xx.xx.xxx xxx.xxx.xx.xx