Ubuntu Linux $1 debian-linux 4.0 $etc_issue =~ /Ubuntu.*\s(8\.[0-9\.]+)\s/i
Ubuntu Linux $1 debian-linux 5.0 $etc_issue =~ /Ubuntu.*\s(9\.[0-9\.]+)\s/i
Ubuntu Linux $1 debian-linux 5.0 $etc_issue =~ /Ubuntu.*\s(10\.[0-9\.]+)\s/i
+Ubuntu Linux $1 debian-linux 6.0 $etc_issue =~ /Ubuntu.*\s(11\.[0-9\.]+)\s/i || $etc_issue =~ /Ubuntu\s+natty/i
Ubuntu Linux $1 debian-linux 3.1 $etc_issue =~ /Ubuntu.*\s([0-9\.]+)\s/i
Mepis Linux $1 debian-linux $1 $etc_issue =~ /MEPIS/ && `cat /etc/debian_version 2>/dev/null` =~ /([0-9\.]+)/
Mepis Linux $1 debian-linux 4.0 $etc_issue =~ /MEPIS/ && `cat /etc/debian_version 2>/dev/null` =~ /(stable)/