$ab = "\$a";

That's taking the value of $a and appending it to a backslash ...

Actually, it's escaping a  $ (dollar) character to make it a literal rather than a scalar sigil, which would result in scalar interpolation: 

c:\@Work\Perl\monks>perl -wMstrict -le
"my $a = 'foo';
 my $ab = qq{'\$a'  '$a'};
 print $ab;
"
'$a'  'foo'

[download]
(I have to use  qq{} instead of  "" (double-quotes) to keep Windoze command line from going nuts with escapes.)

Give a man a fish:  <%-(-(-(-<

In reply to Re^7: Sorting based on any column by AnomalousMonk
in thread Sorting based on any column by Anonymous Monk

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