Brute force testing audio hardware shell script

The following Linux Shell script is used to complete audio accessories for brute force testing. If you have better scripts, please provide them.

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#! /Bin/sh

While true

Do

Aplay/root/test.wav &

Sleep 8 # sleep sometime <audio time length

Id = 'ps | grep aplay | awk '{print $1}' | head-N 1' # Get the process ID

Echo $ ID # print the process ID

Kill-9 $ ID # Kill the aplay Process
Sleep 20 # sleep 20 seconds
SH/root/play. Sh # re-start this scripts

Done

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Note: Why is head used here, because PS | grep aplay will print the following information under buildroot:

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# Ps | grep aplay
920 root aplay test.wav
922 root grep aplay

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