From: Glynn Clements <glynn@gclements.plus.com>
To: Suma Choudhary <sumac@myw.ltindia.com>
Cc: linux-c-programming@vger.kernel.org
Subject: Re: just curious!
Date: Sat, 8 Oct 2005 08:17:18 +0100 [thread overview]
Message-ID: <17223.29310.783504.657650@cerise.gclements.plus.com> (raw)
In-Reply-To: <s34561c8.010@EMAIL>
Suma Choudhary wrote:
> I was curious to know how the "write" command works.Any IPCs used?
It determines the terminal(s) on which the specified user is logged in
from the utmp file, opens the terminal device for writing, and writes
to it.
Note that the terminal device must be group-writeable (normally
controlled using "mesg y" or "mesg n"). The write command itself is
setgid tty.
--
Glynn Clements <glynn@gclements.plus.com>
next prev parent reply other threads:[~2005-10-08 7:17 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-06 12:11 just curious! Suma Choudhary
2005-10-06 12:41 ` David Eduardo Gómez Noguera
2005-10-08 7:17 ` Glynn Clements [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-10-10 2:25 Suma Choudhary
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