Very Computer

by **nowa** » Thu, 30 Dec 1999 04:00:00

I am writing a small utility that accepts input from stdin. I need it
to behave differently if the input is being typed in or if it's
redirected from a file.

I knew how to do this once but unfortunatly, iv'e been developing
primarily for Windows for the last few years.

by **Lew Pitch** » Thu, 30 Dec 1999 04:00:00

>I am writing a small utility that accepts input from stdin. I need it
>to behave differently if the input is being typed in or if it's
>redirected from a file.

>I knew how to do this once but unfortunatly, iv'e been developing
>primarily for Windows for the last few years.

man isatty

Lew Pitcher
System Consultant
Toronto Dominion Financial Group

(Opinions expressed are my own, not my employer's.)

by **Colin Walter** » Thu, 30 Dec 1999 04:00:00

> I am writing a small utility that accepts input from stdin. I need
> it to behave differently if the input is being typed in or if it's
> redirected from a file.

I believe the function you are looking for is isatty()

--

http://web.verbum.org/levanti
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by **nowa** » Thu, 30 Dec 1999 04:00:00

Thanx :)

> >I am writing a small utility that accepts input from stdin. I need it
> >to behave differently if the input is being typed in or if it's
> >redirected from a file.

> >I knew how to do this once but unfortunatly, iv'e been developing
> >primarily for Windows for the last few years.

> man isatty

> Lew Pitcher
> System Consultant
> Toronto Dominion Financial Group

> (Opinions expressed are my own, not my employer's.)

by **Marcus Thiesse** » Fri, 31 Dec 1999 04:00:00

> I am writing a small utility that accepts input from stdin. I need it
> to behave differently if the input is being typed in or if it's
> redirected from a file.

tty(1)/pty(1) should give you some information whether stdin is a
terminal or pseudo-terminal or it is not (e.g. a file).

If prefer C/C++ you may wish the check out the man pages on
[fl]stat. The st_mode field in struct stat can help you to determine
the file type (regular vs character/blk special).

HTH,

--Marcus

Very Computer

Distingushing between console & redirected input

Distingushing between console & redirected input

Distingushing between console & redirected input

Distingushing between console & redirected input

Distingushing between console & redirected input

Distingushing between console & redirected input