Please have a look at all the answers you got at matching the + character. In short do either of these: 

$var1 = quotemeta $var1;   # do this before you use it in the regex

or

if ($line =~ /\Q$var1\E/m)

[download]

Either of these escape all regex metachars and should be considered mandatory if you want to avoid problems interpolating variables into regexes. PS Don't do both at the same time - it is either or!

cheers

tachyon

print quotemeta 'a+b';

In reply to Re: matching + character in a file by tachyon
in thread matching + character in a file by jalebie

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