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, providing a means to test only the exit code. 

RETURN VALUE

Exit status codes for tty are:

2 Invalid options were specified,

1 The standard input is not a terminal or pseudo-terminal,

0 The standard input is a terminal or pseudo-terminal. 

Exit status codes for pty are:

2 Invalid options were specified,

1 The standard input is not a pseudo-terminal,

0 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. 

AUTHOR

tty was developed by AT&T.  pty was developed by HP. 

STANDARDS CONFORMANCE

tty: SVID2, XPG2, XPG3, proposed POSIX.2 FIPS (June 1990)

Hewlett-Packard Company  —  HP-UX Release 8.05: June 1991