TTY(1) User Commands TTY(1)

tty - print the file name of the terminal connected to standard input

tty [OPTION]...

Print the file name of the terminal connected to standard input.

print nothing, only return an exit status
display this help and exit
output version information and exit

Written by David MacKenzie.

GNU coreutils online help: https://www.gnu.org/software/coreutils/
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Copyright © 2022 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.

Full documentation https://www.gnu.org/software/coreutils/tty
or available locally via: info '(coreutils) tty invocation'

April 2022 GNU coreutils 9.1