Can anyone help me to to solve following issue
i need to ssh to another server by e.g. ubuntu user which has permission to run sudo su fore sure then execute pm2 restart command
full command look like this
#!/bin/sh
CMD="sudo su; pm2 restart 0; pm2 restart 1; exit;"
ssh -i somepemfile.pem ubuntu@1.1.1.1 $CMD
for example i can run normally any command with sudo
CMD="sudo /etc/init.d/apache2 restart"
but with sudo su case it somehow hang and do not response
Unless you have an unusual setup, you can't normally string su with other preceding commands like that. I would imagine it is running sudo su, then hanging in the root environment/session, because it's waiting for you to exit before preceding to the pm2 commands. Instead, I would consider something along the lines of this using the -c option:
CMD="sudo su -c 'pm2 restart 0; pm2 restart 1'"
ssh -i somepemfile.pem ubuntu@1.1.1.1 "$CMD"
As suggested in another answer, it would also probably be useful to encapsulate the $CMD variable in quotes in the ssh call.