While Corion gave you the better way (Tie::File),
the reason that what you have written isn't working is
that you opened the file as write-only. This means that
The while(<PERS>) loop did nothing. In fact it didn't
even go through the loop. To do what you were wanting to
do you need to use the "+<" open operator instead of ">>"
Note: Don't use "+>" unless you want to truncate the file first

In reply to Re: Substitution of text within a file by linux454
in thread Substitution of text within a file by Anonymous Monk

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