Run bash script from another script and exit first script while second is running

Question

First bash script is:

./second #takes too long

I want kill first bash script while second bash script is still running.

Can I do that?

UPDATE

First script run by cronjob!

Provide your scripts, not just a meaningless script name. Is the first script the parent process of the second? — user559633
– user559633, Commented Dec 23, 2014 at 19:31
Are you asking how to run the second script in the background so the first script can continue? ./second & — that other guy
– that other guy, Commented Dec 23, 2014 at 19:35
Then terminating the parent process will terminate the child. You can halt execution of whatever logic/actions in the first script, but it's process must live for the child to not be terminated. — user559633
– user559633, Commented Dec 23, 2014 at 19:46
Not always, you can disown a process, making it run independently of its parent. "that other guy" already gave you an answer, just add a & to the end of the process call. Read more about disowning processes here (found from a quick google search). — Eric Palace
– Eric Palace, Commented Dec 23, 2014 at 19:53

glenn jackman · Accepted Answer · 2014-12-23 20:08:45Z

15

If the last thing that the first script does is to call the second script, then do this:

exec ./second

which replaces the first script's process with the second.

otherwise

nohup ./second &
disown

answered Dec 23, 2014 at 20:08

glenn jackman

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