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Feb 16th, 2007, 9:57 AM
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what is the best method for reading in arguments?
what is the best method for reading in arguments? How do you guys usually do it?
For example if I had stuff like -r 432 -t -i 5435 etc.
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Feb 16th, 2007, 10:37 AM
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#2 |
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Are you using Bash?
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Feb 17th, 2007, 11:19 AM
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#3 |
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yes. i'm using bash.
I want to read in multiple arguments of unknown length. I found one way that uses a loop with the argument count $#, then uses a case statement to evaluate $1, and then shifts the arguments over to look at the next one. I was just wondering if there were other methods.
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Feb 17th, 2007, 12:22 PM
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#4 |
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You should look up GETOPTS in the advanced bash scripting guide.
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Feb 17th, 2007, 12:30 PM
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#5 | |
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Quote:
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Feb 21st, 2007, 12:12 AM
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#6 |
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getopts isn't very powerful. Take a look at how prefix (specifically sections 2 through 4) parses arguments. If you want another example, look at fsize.
Note this system is imperfect. Most notibly it doesn't yet support non-option arguments that start with a hyphen. I'll get to this when I have time (a lot of stuff builds up to read after being away over a three day weekend...). I should make a shell based off Bash that incorporates this system in a builtin...
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Warning: My posts may change (dramatically) within the first 15 minutes they're posted. Got 'Nux?—GNU/Linux and other free software support. It's GNU/Linux, not just Linux. Last edited by a thing; Feb 21st, 2007 at 12:31 AM. |
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Feb 23rd, 2007, 9:22 PM
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#7 |
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Okay, I've updated fszie to handle files that start with a hyphen (you have to put -- first to tell it to stop parsing options).
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