How to make shell script arguments optional?


 
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Top Forums Shell Programming and Scripting How to make shell script arguments optional?
# 8  
Old 01-01-2012
I used to check the $# first and proceed accordingly.
# 9  
Old 01-01-2012
Quote:
Originally Posted by guitarscn
This would require at least 3 arguments though, correct?
No, all arguments can be optional.
Quote:
Because if you only provided 2, the script wouldn't know which 2 arguments they are for and most likely use the first two options. Right?
The arguments are positional so the shell definitely knows which ones they are.
Quote:
Or can this be circumvented somehow?
Yes, you can just pass empty arguments. The corresponding options would then be ignored.

Last edited by jlliagre; 01-01-2012 at 05:57 PM..
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