[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: cd to the user's home dir
From: |
Andrey Tykhonov |
Subject: |
Re: cd to the user's home dir |
Date: |
Mon, 19 May 2014 03:32:21 +0300 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) |
Bob Proulx <bob@proulx.com> writes:
> Andrey Tykhonov wrote:
>> Emanuel Berg writes:
>> > Andrey Tykhonov writes:
>> >> I would like to be able to `cd' into the user's home
>> >> directory in the same way as I can `cd' in the shell:
>> >>
>> >> cd ~admin
>> >>
>> >> I try in Emacs:
>> >>
>> >> M-x cd RET ~admin RET
>> >>
>> >> but it doesn't work. Emacs seems doesn't provide such
>> >> functionality. Am I wrong?
>> >
>> > `cd' changes the "default directory" of the current
>> > buffer - e.g., so when you `find-file' in that buffer,
>> > the prompt will by default be pointed at that
>> > directory, as the most likely place you would want to
>> > look.
>> >
>> > I don't really get what you want
>
> I don't think I understand either. Because the above works fine for
> me. If you use the emacs interactive cd function it will prompt in
> the minibuffer with this:
>
> Change default directory: ~/
>
> If I type in ~someuser/somepath that is expanded appropriately and
> everything works fine.
Oh, I'm sorry! I just tried ~someuser/ and it does really works! Before
I've tried just ~som and hit TAB after that. I expected appropriate
completion but didn't get it and decided that that doesn't work at all,
also I tried cd ~someuser RET (without ending slash)...
Does completion work for you if you type ~someu TAB ?
> When you say it does not work for you what is
> it about it that does not work?
>
>> Well, I have many projects which paths are long and it is very often
>> required to `cd' to one of them. Very often and time consuming. For a shell
>> I resolved such an issue by means of creating system user (I'm on Linux)
>> and now I can just (with auto completion and quite nice representation in
>> the PS1):
>>
>> cd ~username
>>
>> where username is a system user's home directory which is the project
>> root. Well, `username' in my case is just a project's name.
>
> That is fine. But instead of creating a full user account in the
> system it would be more typical to create variables and cd there. Or
> to create aliases. In the shell, there is even variable name completion:
>
> cd $somelocation
>
>> Such thing is quite good and handy for me and I would like the same but in
>> Emacs, thus I want to be able to change "default directory" of the current
>> buffer to the user's home directory.
>>
>> I just wrote these simple functions which does allow to do described thing:
>>
>> (defun system-users ()
>> (split-string
>> (shell-command-to-string "grep -o '^[^:]*' /etc/passwd | tr '\n' ' '") "
>> "))
>>
>> (defun cu (user)
>> "cd to the USER's home directory."
>> (interactive
>> (list
>> (completing-read "User: " (system-users))))
>> (setq default-directory
>> (replace-regexp-in-string "\n" "" (shell-command-to-string
>
> Look into using the (expand-file-name) function. Use it like this:
>
> (expand-file-name "~/emacs")
>
> It returns the expanded file name. That would be a lot more portable
> and easier to use than your brute force grep of the /etc/passwd file.
> (Which is fine too but won't catch users in NIS/yp or LDAP or other
> type of account database.
>
>> Now I just wonder: is there any similar functionality in Emacs? Is there
>> any way to cd to specific user's home directory?
>
> Of course this is where I get a confused look on my face and say, yes,
> simply use the emacs 'cd' function.
>
> cd is an interactive compiled Lisp function in `files.el'.
>
> (cd DIR)
>
> Make DIR become the current buffer's default directory.
> If your environment includes a `CDPATH' variable, try each one of
> that list of directories (separated by occurrences of
> `path-separator') when resolving a relative directory name.
> The path separator is colon in GNU and GNU-like systems.
>
> Bob
Message not available