Can One Bash Script Launch Multiple Other Bash Scripts?

Question

I currently have a Bash Script ("Bash Script 1") that executes a PHP file. I would like to have a Bash script that can launch multiple instances of "Bash Script 1" and let them run at the same time.

Is this possible and how might I go about this?

Any thoughts or comments would be greatly appreciated.

Barmar · Accepted Answer · 2013-07-03 23:01:59Z

7

Run them in the background, just like you would in an interactive shell.

command1 &
command2 &
command3 &
wait # Wait for all background commands to finish

The commands can be just about anything, not just other bash scripts.

answered Jul 3, 2013 at 23:01

Barmar

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Comments

Diego Torres Milano · Accepted Answer · 2013-07-03 23:36:47Z

1

If you want to repeat the same command:

N=10 # number of repetitions
for i in $(seq $N)
do
    bash_script_1&
done

answered Jul 3, 2013 at 23:36

Diego Torres Milano

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2 Comments

ruakh Over a year ago

+1, though there's no real need to call out to seq; you might as well use built-in Bash features, like for ((i = 0 ; i < 10 ; ++i)) or for i in {1..10}.

Diego Torres Milano Over a year ago

Maybe, but unfortunately {1..$N} does not work if you want to use a variable

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