Open terminal window from emacs

Open terminal window from emacs

[Frederik]

Hey,

I try to open up urxvt from emacs and make the terminal emulator
automatically switch to the current working directory of the current
buffer (i.e. to the value of default-directory).

This is what I've come up with:

(call-process "/usr/bin/urxvt" nil 0 nil
	(concat "-cd" default-directory))

But this doesn't work.

This
(call-process "/usr/bin/urxvt" nil 0 nil
	"-cd ~/test")
doesn't work either, even though the directory exits.

Any pointers?

-- 
Frederik

Re: Open terminal window from emacs

[Pascal J. Bourguignon]

Frederik <freak.fred@gmail.com> writes:

> Hey,
>
> I try to open up urxvt from emacs and make the terminal emulator
> automatically switch to the current working directory of the current
> buffer (i.e. to the value of default-directory).
>
> This is what I've come up with:
>
> (call-process "/usr/bin/urxvt" nil 0 nil
> 	(concat "-cd" default-directory))
>
> But this doesn't work.
>
> This
> (call-process "/usr/bin/urxvt" nil 0 nil
> 	"-cd ~/test")
> doesn't work either, even though the directory exits.

(shell-command (format "cd %S ; /usr/bin/urxvt" default-directory))

-- 
__Pascal Bourguignon__
http://www.informatimago.com/

Re: Open terminal window from emacs

[Frederik]

> (shell-command (format "cd %S ; /usr/bin/urxvt" default-directory))

Thanks, but this freezes my emacs frame as long as the terminal runs;
I'd like to avoid that. I guess that I'll have to stick with
call-process, but as I don't know any Lisp, I don't know how to
correctly adapt your hint to call-process...


-- 
Frederik

Re: Open terminal window from emacs

[Frederik]

> I try to open up urxvt from emacs and make the terminal emulator
> automatically switch to the current working directory of the current
> buffer (i.e. to the value of default-directory).

Ok, the following works for me:
(call-process "/usr/bin/urxvt" nil 0 nil
	      "-cd" (expand-file-name default-directory))

I've no clue why this works, but I'm happy now...

-- 
Frederik

Re: Open terminal window from emacs

[Sven Joachim]

On 2013-09-27 22:46 +0200, Frederik wrote:

> I try to open up urxvt from emacs and make the terminal emulator
> automatically switch to the current working directory of the current
> buffer (i.e. to the value of default-directory).

Shouldn't the terminal emulator start in that directory automatically?
At least xterm does, I don't have urxvt around ATM.

> This is what I've come up with:
>
> (call-process "/usr/bin/urxvt" nil 0 nil
> 	(concat "-cd" default-directory))
>
> But this doesn't work.
>
> This
> (call-process "/usr/bin/urxvt" nil 0 nil
> 	"-cd ~/test")
> doesn't work either, even though the directory exits.
>
> Any pointers?

Seems to me the tilde does not get expanded here, so you would have to
use (expand-file-name default-directory) rather than just
default-directory.

Cheers,
       Sven

Re: Open terminal window from emacs

[Frederik]

> Seems to me the tilde does not get expanded here, so you would have to
> use (expand-file-name default-directory) rather than just
> default-directory.
> 
> Cheers,
>        Sven
> 

Yeah, thanks, I just skimmed the documentation on default-directory and
found expand-file-name. It works now. However the behaviour is quite
strange since the command "urxvt -cd ~/test" works well when launched
from a terminal...

Cheers

-- 
Frederik

Re: Open terminal window from emacs

[Peter Dyballa]

Am 28.09.2013 um 09:56 schrieb Sven Joachim:

> Shouldn't the terminal emulator start in that directory automatically?

The *terminal emulator* might have its working directory there, but you're not working with it, you are using the shell inside. And it might have some initialisation code…

--
Greetings

  Pete

If you're not confused, you're not paying attention.

Re: Open terminal window from emacs

[Sven Joachim]

On 2013-09-28 10:06 +0200, Frederik wrote:

>> Seems to me the tilde does not get expanded here, so you would have to
>> use (expand-file-name default-directory) rather than just
>> default-directory.
>
> Yeah, thanks, I just skimmed the documentation on default-directory and
> found expand-file-name. It works now. However the behaviour is quite
> strange since the command "urxvt -cd ~/test" works well when launched
> from a terminal...

Your shell expands the tilde then, as it does in Pascal's suggestion.
But call-process does not invoke a shell, in contrast to shell-command.

Cheers,
       Sven

Re: Open terminal window from emacs

[Frederik]

Am 28.09.2013 12:06, schrieb Sven Joachim:
> On 2013-09-28 10:06 +0200, Frederik wrote:
> 
>>> Seems to me the tilde does not get expanded here, so you would have to
>>> use (expand-file-name default-directory) rather than just
>>> default-directory.
>>
>> Yeah, thanks, I just skimmed the documentation on default-directory and
>> found expand-file-name. It works now. However the behaviour is quite
>> strange since the command "urxvt -cd ~/test" works well when launched
>> from a terminal...
> 
> Your shell expands the tilde then, as it does in Pascal's suggestion.
> But call-process does not invoke a shell, in contrast to shell-command.
> 
> Cheers,
>        Sven
> 

I see. Thanks for the clarification!

Regards,

-- 
Frederik