root@node1 Nov 27 21:30:57 ~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 11.04
Release:    11.04
Codename:   natty
root@node1 Nov 27 21:31:02 ~# readlink -f /proc/self | xargs basename
14571
root@node1 Nov 27 21:31:09 ~# echo $$
14429
root@node1 Nov 27 21:31:11 ~# cd /proc/self; cut -f 1 -d ' ' stat; cd -
14429
/root
root@node1 Nov 27 21:31:47 ~#
root@node1 Nov 27 21:40:01 ~#
root@node1 Nov 27 21:40:02 ~#
root@node1 Nov 27 21:40:02 ~# ll -d /proc/self
lrwxrwxrwx 1 root root 64 Nov 27 21:25 /proc/self -> 14617/
root@node1 Nov 27 21:40:06 ~#
root@node1 Nov 27 21:45:46 ~#
root@node1 Nov 27 21:45:46 ~#
root@node1 Nov 27 21:45:46 ~#
root@node1 Nov 27 21:45:46 ~# cut -d ' ' -f 4 /proc/self/stat
14429
root@node1 Nov 27 21:45:47 ~#