Man Pages

tty - phpMan tty - phpMan

Command: man perldoc info search(apropos)  


File: coreutils.info,  Node: tty invocation,  Prev: printenv invocation,  Up: Working context

19.4 `tty': Print file name of terminal on standard input
=========================================================

`tty' prints the file name of the terminal connected to its standard
input.  It prints `not a tty' if standard input is not a terminal.
Synopsis:

     tty [OPTION]...

   The program accepts the following option.  Also see *note Common
options::.

`-s'
`--silent'
`--quiet'
     Print nothing; only return an exit status.


   Exit status:

     0 if standard input is a terminal
     1 if standard input is not a terminal
     2 if given incorrect arguments
     3 if a write error occurs