Basic commands a system admin need to know

Basic commands a system admin need to know.

- tty – tty command will tells you current terminal.

#tty
/dev/pts/1

- whoami- whoami commands tells you current logged-in username

#whoami
root

- which- which command will give you the path of the command

#which tty
/usr/bin/tty

- set- set command prints and sets the shell variables or environment variables

- echo command will prints the output to screen

#echo $PWD

print current working directory to the screen.

- history-history command will tells you the command history

- clear or ctrl+l- This will clear the terminal screen.

- pwd-pwd command will give you the current working directory

- cd- cd command change the directory to specified one.

#cd   will change the working directory to root.
#cd 

- ls- ls command will list the files and directories.