eval runs a command or a set of commands. You can test data for its validity through this command. 
eval "$val= ; ";
if ( $@ eq "")
{ print "this is valid"; }
else 
{ print "$@ is invalid"; }

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It is a way to trap possible error conditions during run time.

In reply to Re: help with a Perl term by BigJoe
in thread help with a Perl term by zdog

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