One way: 
use File::Slurp "write_file";
write_file("filename", $mac) or die "Error writing to file: $!";

[download]
or, more traditionally, 
open my $handle, "> filename" or die "Couldn't open file: $!";
print $handle $mac;
close $handle;

[download]
(Ideally, you should check if the print and close fail also; this is commonly overlooked.)

In reply to Re: Output to file question by ysth
in thread Output to file question by dannyp

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