Using commands with ssh to execute on remote server

Using commands with ssh to execute on remote server.

If you want to execute a command on a remote server we need not login to server but we can execute the command directly from the command prompt only.
Eg. If we want to check corntab entries of few servers we canuse contab –l from the command prompt only.

ssh servername crontab –l

If we want to execute more than one command from command prompt we can do as below with “;” as command .

ssh servername “hostname ; crontab –l | grep /u01/app/oracle “