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bug#11194: 24.0.95; sudo rm doesn't work with absolute directory paths o

From: Thierry Volpiatto
Subject: bug#11194: 24.0.95; sudo rm doesn't work with absolute directory paths on the file system
Date: Fri, 20 Apr 2012 22:58:52 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.1.50 (gnu/linux)

Hi Michael,

Michael Albinus <address@hidden> writes:

> Thierry Volpiatto <address@hidden> writes:
>>> Hi Michael,
> Hi Thierry,
>>> Michael Albinus <address@hidden> writes:
>>>> And, btw, people who don't like the current behaviour are free to add
>>>> alias sudo *sudo $*
>>> Most people use such an alias because eshell/sudo is not working with
>>> commands where files are not involved 
>>> e.g "eshell/sudo uname -a" or "eshell/sudo fdisk -l" etc...
>>> ==> ssh: connect to host localhost port 22: Connection refused
This happen with a bad configuration of `tramp-default-proxies-alist':

--8<---------------cut here---------------start------------->8---
(add-to-list 'tramp-default-proxies-alist
             '(nil "\\`root\\'" "/ssh:%h:"))
--8<---------------cut here---------------end--------------->8---

With this with host set to nil,
(directory-file-p "/sudo:localhost:")
C-x C-f "/sudo:localhost:"
fail with error above.
The host should be set to the real name of the host we want to connect
on as root:

--8<---------------cut here---------------start------------->8---
(add-to-list 'tramp-default-proxies-alist
             '("\\`realhostname\\'" "\\`root\\'" "/ssh:%h:"))
--8<---------------cut here---------------end--------------->8---

>> And also it is using /bin/sh which is not aware of many system
>> maintenance commands mostly used as root with sudo.
> Does there exist a corresponding bug report? I'm short in time, but
> maybe I could have a look on it later.
No but you can reproduce easily with:

$ eshell/sudo fdisk -l
=>/bin/sh: fdisk: not found

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