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Re: getopt::std help

by davidrw (Prior)
on Jan 07, 2008 at 02:45 UTC ( #660735=note: print w/replies, xml ) Need Help??

in reply to getopt::std help

Add this to see what's going on:
use Data::Dumper; print Dumper $o;
And you'll see that the key 'h' _is_ being created, and the value is undef, which is why your if statements don't pick it up, since it's a false value. This will do what you want:
usage() if exists $o->{h};

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Re^2: getopt::std help
by convenientstore (Pilgrim) on Jan 07, 2008 at 02:57 UTC
    Thank you.
    One more thing, will using getopt automatically reject the flags that are not explicitly specified (getopt('hltf', $o);), meaning if I call a program w/ ./program -x ,
    Will getopt automatically reject and abort the program or do I need to tell the program that?

      Try running ./program -x and see what happens. Sometimes the best way to learn is to experiment;)

        just to follow up on my post and also just in case there are newbies on this site like me who is having trouble deciphering other official document on getopt::Long,

        I ran into below page which gave me enough examples and definition for my slow head to understand bit better.. just wanted to share
        But I thank all the experts who reply to my posts as always :-) as there is nothing like coming here and get help/advice/encouragement(sometimes kick in the ass) to continue my journey of perl.. I love perl!!!!

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