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tty command in Linux with examples

Last Updated : 10 May, 2023
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Linux operating system represents everything in a file system, the hardware devices that we attach are also represented as a file. The terminal is also represented as a file. There is a command called tty which displays information related to the terminal. The tty command of the terminal basically prints the file name of the terminal connected to standard input. tty is short for teletype, but popularly known as a terminal it allows you to interact with the system by passing on the data (your input) to the system and displaying the output produced by the system. 

Syntax of `tty` Command

tty [OPTION]....

The most basic use of the tty command is to display the name of the current terminal. To do this, simply type “tty” without any options

sudo tty
sudo tty

sudo tty


  • -s, ––silent, ––quiet: Prints nothing, only returns an exit status.
  • -a:which displays the name of all currently active terminals, 
  • -h: which displays the full path name of the terminal device file. 
  • ––help: It will display the help message and exit.
  • ––version: Prints the version information and exits. 
tty --version

tty –version


The tty command is a powerful tool for working with virtual consoles in a Linux environment. It allows you to switch between terminals, check whether a script is being run in an interactive shell and send signals to processes running on a terminal. By understanding how to use the tty command effectively, you can become a more proficient Linux user and administrator. With the addition of the concept of a terminal, its importance in Linux, and the explanation of additional options, users can better understand the capabilities of this essential tool.


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