Re: emacs current directory when shell commands change

Re: emacs current directory when shell commands change

[David Strozzi]

Hi,

Thanks to those who gave help with this.  I still haven't reached
Nirvana though.  I'd like to use 'regular' shell mode (M-x shell),
unless some other mode is preferred for doing serious bash shelling.
I put this in my .emacs:

(setq shell-cd-regexp "cd.*")

This should make the shell think anything starting with cd is a change
dir. command.  In my .bashrc I set an alias:

alias cder='cd ~/elvis/runs'

>From shell, cder indeed works (i.e., the shell thinks I'm in the new
dir).  However, emacs always thinks I've cd'ed to ~.  The same thing
happens if I write out the full path and don't use ~ in the alias def.

So it seems emacs is interpreting all these aliases as being
equivalent to a bare 'cd', which of course moved to ~.  Maybe I
mis-understood what shell-cd-regexp does....

The functionality I want is having a bunch of 5 or 6 char aliases that
take me to some god-forsaken dirs buried in the filesystem, and I want
emacs to know where I'm going.  How do I do this?

Thanks again,
Dave

Re: emacs current directory when shell commands change

[Peter Dyballa]

Am 24.04.2007 um 02:38 schrieb David Strozzi:

> So it seems emacs is interpreting all these aliases as being
> equivalent to a bare 'cd', which of course moved to ~.  Maybe I
> mis-understood what shell-cd-regexp does....

IMO this is the case. The variable is meant to make alias names of  
pushd or popd be the same as pushd or popd. When your alias cder is a  
cd plus an argument, a directory's name, then GNU Emacs fails: it  
sees cd – and this means: go home!

The work-around would be to have a stack of directories with you and  
you just pop the one you want to go to. (T)csh has the ~/.cshdirs  
file (or the file $dirsfile is pointing to). Bash has a very  
comfortable dirs command, but I don't see how its DIRSTACK is filled  
at startup ... by simple assignment?

--
Greetings

   Pete

To most people solutions mean finding the answers. But to chemists  
solutions
are things that are still all mixed up.

Re: emacs current directory when shell commands change

[Kai Grossjohann]

"David Strozzi" <david.strozzi@gmail.com> writes:

> The functionality I want is having a bunch of 5 or 6 char aliases that
> take me to some god-forsaken dirs buried in the filesystem, and I want
> emacs to know where I'm going.  How do I do this?

I set environment variables and type "cd $foo".

Perhaps you could change your aliases to do "cd /some/where; pwd"?
Would that work?

There are also extensions to shell-mode that perform directory
tracking.  Perhaps if you google "Emacs shell mode directory tracking
dirtrack", you can find something.

Kai

Re: emacs current directory when shell commands change

[Kai Grossjohann]

"David Strozzi" <david.strozzi@gmail.com> writes:

> Thanks to those who gave help with this.  I still haven't reached
> Nirvana though.  I'd like to use 'regular' shell mode (M-x shell),
> unless some other mode is preferred for doing serious bash shelling.

I am fond of M-x eshell RET, but the resulting shell is not a bash.

Is it better to be eshelling or to be bashing?  I don't know.

Kai