PHP в консоле...

if [ -z "$1" ]
then
 reg='s/windows-1251/koi8-r/g; s/\xB9/\№/g; s/\x95/\●/g; s/\r//g; s/\x96/-/g; s/[\xAB\xBB\x93\x94]/\"/g'
 export reg
 find $PWD/template -name *.htm* -exec $0 '{}' \;
exit
fi
fname=$1
tname=/tmp/reconv.$$
echo Обработка $1
echo $tname
sed -e "$reg" $fname | iconv -f cp1251 -t koi8r >$tname
cp $tname $fname
rm $tname

<?php
exec('ipconfig /all',$output);
foreach($output as $v)
   if(preg_match("/\b(\w{2}-){5}\w{2}\b/",$v,$matches)) $macs[] = $matches[0];
print_r($macs);
?>