linux geeks check out these are some useful commands
System information commands
Archive
Backup tools
CDROM support
Character set
DEB packages
Disk Space
files and directories
File search
File system Analysis
Filesystem SWAP
Format a Filesystem
IPTABLES
Monitoring and debugging
Mounting a Filesystem
Networking
Others useful commands
Permission on Files
RPM Packages
samba
Shutdown, Restart
Special Attributes on files
Text Manipulation
Users and Groups
View file content
yum
for further reference check out this site
hope this is of help to you guys out there
