about the excel part:

if you create a csv file that is tab delimited and name it with an extension of .xls, Excel will correctly open it.

To get the device name as well, I'd do it as follows: 
use strict;
use warnings;
my %devices;
$_ = q|device1 is 2.3.5.1 . . . 56% /var 38% / 31% Interleaved device1
+ Tue Sep 9 11:26:44 ist 2005 logging to device2 is 2.3.5.1 . . . 56% 
+/var 44% / 31%|;

my @arr = /(device\d+)\sis\s.+?\/var\s+(\d+%)/g;
%devices = @arr;

open(XLS, ">/path/to/file.xls") or die "Could not open file: " . $!;

foreach my $device (sort keys (%devices)) {
    print XLS $device . "\t" . $devices{$device} . "\n";
}

close XLS;

[download]
Cheers
Sven

In reply to Re^2: greping for a value by svenXY
in thread new : greping by pingme8705

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