in reply to Split a string to remove quotes and parentheses

split is most useful when dealing with a list of items. In this case you only have one (test123), so you should look to regexps instead. The following snippets will do:
$string =~ s/^\("(.*)"\)$/$1/;
# Faster than first. $string =~ s/^\("//; $string =~ s/"\)$//;
# Same as previous, less redundant. s/^\("//, s/"\)$// for $string;

Update: I didn't know the braces needed to be replaced. I'm fixed my snippets. Two following two snippet cann't be fixed:

# You didn't mention an escape mechanism, so I'm # assuming there's no other quotes in the string. $string =~ s/"//g;
# I didn't say it was impossible. $string = (split '"', $string)[1];