How to kill(if process exist) & restart a process in a single command line

Question

I am in situation where i want to kill a process if exist & restart the same. How to do it?

currently i am doing this

killall -9 inetd && /bin/inetd

If inetd is not running i get this

killall: /bin/inetd: no process killed

Even though inetd is not running i want the above command to be successful.

use `;` to sequence commands, not `&&` that is a conditional. — Jean-Baptiste Yunès, Jan 18 '16 at 11:53
but if some issue happens with killall, it will go ahead with /bin/inetd. I dont want this to happen. i want it to be successful even if the particular process is not found. — prashanth cm, Jan 18 '16 at 12:31
You said you wanted to launch `inetd` even if `killall` don't work, isn't it? So `;` will make it as both commands will be run... What do you really want? — Jean-Baptiste Yunès, Jan 18 '16 at 13:24

score 0 · Answer 1 · answered Jan 18 '16 at 11:53

0

Use ;

killall -9 inetd; /bin/inetd

answered Jan 18 '16 at 11:53

tbsalling

but if some issue happens with killall, it will go ahead with /bin/inetd. I dont want this to happen. i want it to be successful even if the particular process is not found. – prashanth cm Jan 18 '16 at 12:14
That is not possible: "killall returns a zero return code if at least one process has been killed for each listed command, or no commands were listed and at least one process matched the -u and -Z search criteria. killall returns non-zero otherwise." – tbsalling Jan 18 '16 at 12:52

1 Answers1