On a side note, let me recommend you File::Slurp module, it allows you to replace the whole your example with: 

use File::Slurp qw(edit_file);

edit_file {
    s/$uname/$answer1/g;
    s/domainsuffix.net/$answer4/g;
} $hosts;

[download]

In reply to Re: Search and replace within a file by zwon
in thread Search and replace within a file by muizelaar

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