tty(1)tty(1)Nametty - print current terminal name
Syntaxtty [-s]
Description
The command prints the pathname of the user's terminal unless the -s
(silent) is given. In either case, the exit value is zero if the stan‐
dard input is a terminal and one if it is not.
Options-s Suppresses pathname.
Diagnostics
Prints `not a tty' if the standard input file is not a terminal.
tty(1)