This will be an on-going post that I will use to keep track of my most commonly used commands.
Tested on Centos 6.3.
Linux Misc
List users
cat /etc/passwd
List groups
cat /etc/group
View free memory
free -m
View disk space usage
df -h
Git
Init new remote repo
git init –bare
Clone existing repo using HTTP
git clone http://repourl.com/path/to/repo
Clone existing repo using SSH on non-standard port
git clone ssh://user@repourl.com:8888/path/to/repo
Xen using LibVirt
List running Virtual Machines on Node
virsh list
List all Virtual Machines on Node
virsh list –all