Re: Delete keys in hash if they exist in another hash

Try:

foreach $k (keys %hash){
delete ($hash{$k}) unless exists $end{$k};
}
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You were using $_ as the key to %end. You have not set $_ in the code you posted so it is unlikely to have a value that you want. This should clear the error.

Comment on Re: Delete keys in hash if they exist in another hash Download Code

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Re^2: Delete keys in hash if they exist in another hash by tachyon (Chancellor) on Nov 11, 2004 at 09:49 UTC
`s/unless/if/` to be pedantic, but the clue is right of course.	[reply] [d/l]
Re^2: Delete keys in hash if they exist in another hash by tgolf4fun (Novice) on Nov 13, 2004 at 00:20 UTC
Thanks so much, what do they say about hind sight, anyway this worked. I just never put $k in $end{}. I can sleep now, and only hope that someday I can gain enough knowledge to help someone as you have I.	[reply]