Yes, seek works in this case because the final output is longer than the initial output. But a word of caution is in order. Consider:

#! perl
use strict;
use warnings;

my $filename = 'test.txt';
open(my $fh, '>', $filename) or die "Cannot open file '$filename' for 
+writing: $!";
print $fh "The quick brown fox jumped over the unfortunate dog.";
seek $fh, 0, 0;
print $fh "The final output.";
close($fh) or die "Cannot close file '$filename': $!";

[download]

This results in file “test.txt” containing:

The final output.ox jumped over the unfortunate dog.

[download]

as seeking to the beginning of the file does not erase its existing contents.

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

In reply to Re^2: Empty File Contents before writing by Athanasius
in thread Empty File Contnts before writing by gautamparimoo

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