Re: test -t some-file, etc.

[Andreas Schwab]

jidanni@kimo.FiXcomTHiS.tw (Dan Jacobson) writes:

|>        -t fd  True if file descriptor fd is open and refers to  a
|>               terminal.
|> 
|> $? is found at char 1 of my next prompt:
|> 1/tmp$ test -t a
|> 0/tmp$ test -t addsds
|> 0/tmp$ test -t 11    
|> 1/tmp$ test -t /dev/tty
|> 0/tmp$ test -t /dev/tty4
|> 0/tmp$ test -t /dev/tty4444444...
|> only the results for test -t 11 and test -t /dev/tty am I happy with 

All tests except the third one (test -t 11) are apparently equivalent to
`test -t 0'.

Andreas.

-- 
Andreas Schwab                                  "And now for something
SuSE Labs                                        completely different."
Andreas.Schwab@suse.de
SuSE GmbH, Schanzäckerstr. 10, D-90443 Nürnberg
Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5