tty(1) — sysv — mips UMIPS RISC/os 4.52



TTY(1-SysV)         RISC/os Reference Manual          TTY(1-SysV)



NAME
     tty - get the name of the terminal

SYNOPSIS
     tty [ -l ] [ -s ]

DESCRIPTION
     tty prints the path name of the user's terminal.

     -l   prints the synchronous line number to which the user's
          terminal is connected, if it is on an active synchro-
          nous line.

     -s   inhibits printing of the terminal path name, allowing
          one to test just the exit code.

EXIT CODES
     2   if invalid otions were specified,

     0   if standard input is a terminal,

     1   otherwise.

DIAGNOSTICS
     ``not on an active synchronous line'' if the standard input
     is not a synchronous terminal and -l is specified.

     ``not a tty'' if the standard input is not a terminal and -s
     is not specified.


























                         Printed 1/15/91                   Page 1
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