Date: Tue, 9 Jun 2009 17:07:30 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: Polytropon <freebsd@edvax.de> Cc: Martin McCormick <martin@dc.cis.okstate.edu>, freebsd-questions@freebsd.org Subject: Re: Control-Z the Sleep Signal Message-ID: <20090609220730.GD56070@dan.emsphone.com> In-Reply-To: <20090609234215.32201c06.freebsd@edvax.de> References: <200906092130.n59LUU7E000141@dc.cis.okstate.edu> <20090609234215.32201c06.freebsd@edvax.de>
next in thread | previous in thread | raw e-mail | index | archive | help
In the last episode (Jun 09), Polytropon said:
> On Tue, 09 Jun 2009 16:30:30 -0500, Martin McCormick <martin@dc.cis.okstate.edu> wrote:
> > Which signal is sent to a process when one types ^z or Control-z? It
> > appears to be SIGSTOP and according to signal's man page, this is one
> > signal you can't catch.
^Z sends a SIGTSTP, which can be caught (or ignored, in your case).
18 SIGTSTP stop process stop signal generated from
keyboard
> According to
>
> % stty -g
> ... status=14:stop=13:susp=1a:time=0:werase=17: ...
^^^^^^^
> 17 SIGSTOP stop process stop (cannot be caught or
> ignored)
>
> And I think that 17 (decimal) is refered to as 1a (hexadecimal)
> in the previous stty command.
1a hex just refers to the control code itself (^Z), and doesn't indicate
which signal is sent.
--
Dan Nelson
dnelson@allantgroup.com
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20090609220730.GD56070>