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Re: "Getoptions'" argument syntax

by btrott (Parson)
on Jun 16, 2001 at 00:15 UTC ( #88928=note: print w/replies, xml ) Need Help??


in reply to "Getoptions'" argument syntax

The '=' in 'refresh=i' doesn't mean that 'refresh' is a mandatory option to the program. It means that, if 'refresh' is supplied, the *integer argument* is mandatory. So you can't just have
$ foo.pl --refresh
An argument to 'refresh' is mandatory.

I don't think there *is* a way to indicate that an option is mandatory (ie. that 'refresh' must be provided as an option).

And since 'refresh' may not be provided, the

$REFRESH = 10
sets the default value for 'refresh' to 10. And it can be overriden on the command line with '--refresh'.

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[choroba]: As discussed in Using the DATA file handle for ARGV, I usually start my "fun" scripts with *ARGV = *DATA{IO} unless @ARGV;

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