tty − print the file name of the terminal connected to standard input
Print the file name of the terminal connected to standard input.
−s, −−silent, −−quiet
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: <http://www.gnu.org/software/coreutils/>
Report tty translation bugs to <http://translationproject.org/team/>
Copyright © 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://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 at: <http://www.gnu.org/software/coreutils/tty>
or available locally via: info '(coreutils) tty invocation'