You need to run a list of commands on a list of servers and record the output of each command.
Create a perl script using Net::SSH::Perl ( a ssh client written as a perl module ). This script will read a list of commands from a file, a list of servers form another file, will connect to each server, execute each command in in the commands file then go to the next server and do the same.
Download the script: [download#8]
- span style="color: #ff0000;">"install Net::SSH::Perl"
Now you can decompress the script and configure it
put the commands in commands.txt ( one command per line )
put the servers in servers.txt (one per line ) in this format: user@hostname:port,password
Now you can test the script: run ./ssh_batch.pl and look at the output in log.txt
Warning! You can destroy multiple servers with this script!
Yeah it can do that if you're not carefull about what commands you tell it to run and you log in with a user with tooÂ much permissions. So make sure you know what you are doing before you run it on production servers.
3 thoughts on “SSH to multiple servers and run commands”
Thanks for putting this together… was wondering how to send multiple commands using ssh without logging out / in several times..
you’d have to modify the script in order to do that.
Hi and thank you for providing this helpful script, I tried using this to access different routers and run 3 commands. the first command is “enable” which will take me to the enable mode so i can run the other 2 commands.
the script is sending the first command “enable” but then it stops. it looks likes its timing-out before switching modes.
any idea how can i make this work?