I don't know how I came to forget about using a negative offset with substr. Thanks for pointing it out.

$ perl -le '
$str = q{yands};
substr( $str, 0, 1 ) = substr $str, -1, 1, substr $str, 0, 1;
print $str;'
sandy
$

[download]

Cheers,

JohnGG

In reply to Re^3: Swap the characters by johngg
in thread Swap the characters by sandy1028

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