NAME

tty, pty − get the name of the terminal

SYNOPSIS

tty [ −s ] pty [ −s ]

DESCRIPTION

Tty and pty print the path name of the user’s terminal.  The −s option inhibits printing of the terminal path name and any diagnostics, allowing one to test just the exit code. 

RETURN VALUE

Exit status codes for tty are:

2 if invalid options were specified,

1 if the standard input is not a terminal or pseudo-terminal,

0 if the standard input is a terminal or pseudo-terminal. 

Exit status codes for pty are:

2 if invalid options were specified,

1 if the standard input is not a pseudo-terminal,

0 if the standard input is a pseudo-terminal. 

DIAGNOSTICS

not a tty standard input is not a terminal or pseudo-terminal for tty. 

not a pty standard input is not a pseudo-terminal for pty. 

HARDWARE DEPENDENCIES

Series 800
Pty is not supported

AUTHOR

Tty was developed by AT&T.  Pty was developed by HP. 

Hewlett-Packard Company  —  Version B.1,  April 12, 1993