NAME

tty − get terminal name

SYNOPSIS

tty [ −s ]

DESCRIPTION

Tty prints the pathname of the user’s terminal unless the −s (silent) option is given. In either case, the exit value is zero if the standard input is a terminal and one if it is not. 

EXIT STATUS

0 Standard input is a terminal. 

1 Standard input is not a terminal. 

2 Invalid options were given. 

DIAGNOSTICS

The diagnostic “not a tty” is printed if the standard input file is not a terminal and −s is not given.  A usage message is output if invalid options are given. 

System V  —  Revision 1.3 of 15/10/90