This chunk of code:
# change normal array separator
my $foo = $";
$" = "\n";
print FH "@head";
$" = $foo; # change back
could be replaced with:
{
local $" = "\n";
print FH "@head";
}
Using
local removes the need for a temporary variable, as the saving and restoring of the previous value of the global $" variable is taken care of for you.
See
local, the "Temporary values via local()" and "When to still use local()" sections of
perlman:perlsub, and for a more detailed explanation and examples, see brother
Dominus's
Seven Useful Uses of local.
-
sacked
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