Multitasking in a bashscript

Question

I am basically trying to write a bash script that suspends some virtual machines running on a host. However, if I write the script sequentially, VMs will be suspended one at a time. Suspending a VM takes some time to save state. How can I let my script suspend the VMs concurrently. In other words, how can I run commands concurrently in a bash script instead of sequentially?

score 2 · Answer 1 · answered Aug 27 '13 at 21:07

2

You can background the tasks.

some bash command with options and stuff then with a &

Adding the & will send the command to the background and begin the next.

answered Aug 27 '13 at 21:07

EvilKittenLord

908
4
8

score 1 · Answer 2 · answered Aug 27 '13 at 21:07

1

Put a & after the command for suspending the the VM.

For example if

cmd_to_suspend_vm

was your command to run. You would run

cmd_to_suspend_vm &

answered Aug 27 '13 at 21:07

dostrander

737
5
19

Multitasking in a bashscript

2 Answers2