Help, my script won't exit.

porkcharsui · 02-11-2011, 03:29 AM

Hi all,

When I run my script(attachment) and I use an option(-l -u -r) that requires an argument, it should exit if the argument isn't supplied, but it doesn't. How do I arrange this? Can anyone help me?

Thanks for any help in advance.

grail · 02-11-2011, 04:44 AM

Firstly:

Code:

while (( "$#" > "0" ))

This a numeric comparison and not a string one so none of the quotes are required.
Secondly, when you have no arguments the loop will enter once for the '--' argument and perform the shift. This then sets $# = 0 so the loop exits.
Remember your loop only caters for incorrect entries to exit and not for none.

I think you need to test for number options passed in prior to the getopts loops.

Hope that helps.