Comment 3 for bug 298424

Some comments:

 - Please don't call egrep and aplay -l twice. Do it once, save it in $output, and just use the variable.
 - I suspect that it also greps /proc/asound/cards further down. Please move that upwards and reuse the grep result.
 - echo $output -> echo "$output", to avoid automatic bash expansion
 - test "$line" -> [ -n "$line" ] for clarity and safety
 - readability: what should "if ! line=$() && line=$()" mean? Please don't mix tests and assignments with && and ||.

Can you please test it again with above changes and attach an updated patch? Once that still works, the change should also be submitted as a Debian bug.

Thank you!