ID Kubuntu pendrive

uname -a
Linux ubuntu 2.6.32-33-generic #72-Ubuntu SMP Fri Jul 29 21:08:37 UTC 2011 i686 GNU/Linux

more /etc/issue
Ubuntu 10.04.3 LTS \n \l

cat /etc/[A-Za-z]*[_-][rv]e[lr]* ;
squeeze/sid
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=10.04
DISTRIB_CODENAME=lucid
DISTRIB_DESCRIPTION="Ubuntu 10.04.3 LTS"