I've got a SHELL script which is using a pipe to separate my 2 commands: ssh -oBatchMode=yes user@hostname "mysql -u yop -pyop -c yop | echo test" The problem is even if my connection to mysql doesn't work, it send the echo test. I would like to forbid my script to send any command if the previous command doesn't work. I search with a if condition but it seems it not possible with it :( Does anyone have an idea ? Thanks, Namari