Linux getting started. Basic Commands You Should Know.

1. ps                          : ( Process Status ). Displays the currently running processes on Unix/Linux systems.
2. top                        : Displays top cpu processes.
3. df                          : ( Disk Free ). Display the amount of available disk space for filesystems.
4. cd                         : Change Directory
5. ls                          :  Displays list of files.
6. find                       :  Search and find the file from linux filesystem.
7. pwd                      : Display the current working directory.
8. who                      : Show all users logged in.
9. ping                      : Check the network connecivity of the server.
10. ifconfig                : Display the netwok configurations of the server.
11. route                   : Display the routing table informtion.
12. nslookup             : Check the DNS resoltion status.
13. netstat                 : Display all the network connection status.
14. grep                    : Text search utility in linux.
15. cat                      : Display the content of a file.