Question

I have three shell script which I am running as below-

sh -x script1.sh

sh -x script2.sh

sh -x script3.sh

So each script is executed sequentially one at a time after previous one finished executing.

Problem Statement:-

Is there any way I can execute all the three above scripts at same time from a single window?
I just want to execute script1, script2, script3 at the same time. If you think of some CRON JOB scheduling script1 at 3 AM, script2 at 3AM, script3 at 3AM (all three scripts at the same time, simultaneously). That’s what I need, I need to execute all the three scripts simultaneously.

Answer 1

you want this?

$ sh -x script1.sh & sh -x script2.sh & sh -x script3.sh &

Update explanation :

• Run each script in background mode so that next command is run without waiting for current command to complete.
• '&' makes the scripts run in background so that prompt does not wait for it to complete
• '&' also can be used to chain commands on one line similar to running commands one by one on command line.