Basic Linux Shell Commands

First You Can Open Terminal

To list all the available command currently installed in your system

press the Tab key 3 times

To Terminate Press 'q' or 'curl+c'

To get command starting with particular character type the relevant character and press 'Tab' 2 times

Ex:-ca--

You can use 'Tab' key to auto fill commands and file names, when you are typing. If a character set is having only a single command, press 'Tab' key one time auto fill the command.

Getting help in Linux command shell

1. using manual pages----> #man cat press enter to exit press 'q'
2. #ls& --help, #cat& --help (ls and cat is shell command)
3. #ls& --help | more

ls ----->Display the contents of the current directory
ls -a----->Display also hidden files and hidden directories