TTY(1) - phpMan

TTY(1)                           User Commands                          TTY(1)
NAME
       tty - print the file name of the terminal connected to standard input
SYNOPSIS
       tty [OPTION]...
DESCRIPTION
       Print the file name of the terminal connected to standard input.
       -s, --silent, --quiet
              print nothing, only return an exit status
       --help display this help and exit
       --version
              output version information and exit
AUTHOR
       Written by David MacKenzie.
REPORTING BUGS
       GNU coreutils online help: <https://www.gnu.org/software/coreutils/>;
       Report tty translation bugs to <https://translationproject.org/team/>;
COPYRIGHT
       Copyright  (C) 2018 Free Software Foundation, Inc.  License GPLv3+: GNU
       GPL version 3 or later <https://gnu.org/licenses/gpl.html>;.
       This is free software: you are free  to  change  and  redistribute  it.
       There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
       Full documentation at: <https://www.gnu.org/software/coreutils/tty>;
       or available locally via: info '(coreutils) tty invocation'
GNU coreutils 8.30                 July 2018                            TTY(1)