Linux HowTo: My Top 10 Linux Commands

My Top Ten Linux Commands of all Time:

# ps          - Process status. Comes with a lot of options eg: 'ps -ef' and 'ps -l'

# man       - Manual of commands. Very useful for quick reference on commands. eg: man -f <cmd>

# find        - Finds files by names, file type, modify time etc. eg: find . -name <filename>

# grep       - Searches regular expressions in files. eg: grep <search criterion> <filename>

# vim         - Visual editor improved. Indispensable for shell scripting.eg: vim <shell script>

# who        - Tells who is logged in.

# w            - Similar to who but more detailed.

# uname     - info about the system, OS, kernel version etc. eg: uname -r, uname -a

# ping         - Sends an ICMP packet to check basic network connectivity. eg: ping <remotehost>

# mailx        - inbuilt mail agent. Very useful in sending notifications and alerts esp from shell scripts.
                   - eg: # mailx -s "subject" recipient1, recipient2,..  < message body