Re: [gentoo-user] Updating $PATH variable permanently for root not working
On 2014-01-05 4:14 PM, Alan McKinnon alan.mckin...@gmail.com wrote: Head spinning yet? Just be done with all that nonsense and do this: Put this line as the only non-comment line in .bash_profile [[ -f ~/.bashrc ]] . ~/.bashrc and put all your shell start-up stuff in .bashrc (moving them out of .bash_profile if necessary This way everything is still unbelievably complex but at least the visible problems mostly just go away Wow... or rather... UGH Anyway, thanks Alan, that did indeed do the trick... :)
Re: [gentoo-user] Updating $PATH variable permanently for root not working
On 06/01/2014 00:05, Michael Orlitzky wrote:
On 01/05/2014 04:14 PM, Alan McKinnon wrote:
This way everything is still unbelievably complex but at least the
visible problems mostly just go away
There is an apparently empty directory, /etc/skel, that upon closer
inspection contains some nice default bash junk:
$ ls -a /etc/skel/
total 32K
drwxr-xr-x 3 root root 4.0K 2013-06-06 10:53 .
drwxr-xr-x 113 root root 12K 2014-01-05 01:24 ..
-rw-r--r-- 1 root root 127 2013-06-06 10:53 .bash_logout
-rw-r--r-- 1 root root 193 2013-06-06 10:53 .bash_profile
-rw-r--r-- 1 root root 551 2013-06-06 10:53 .bashrc
drwx-- 2 root root 4.0K 2007-11-23 14:25 .ssh
The 'useradd' program {might,should} install these for you; if not it
can be coaxed into it with the --skel flag.
The .bash_profile in there does what Alan suggests.
Ah, but there's a snag with the root account which is what Charles is using
useradd root is never run on a Unix boot and /etc/skel is only copied
over by using useradd. The root account is created at install time
unpacking the stage 3 IIRC so the profiles it gets are whatever is in
the tarball.
To get /etc/skel for root, one has to copy the file.
I keep forgetting to do this myself on installs, this the main reason
why I know more about bash startup than I should :-)
--
Alan McKinnon
alan.mckin...@gmail.com
Re: [gentoo-user] Updating $PATH variable permanently for root not working
On 06/01/2014 14:28, Tanstaafl wrote: On 2014-01-05 4:14 PM, Alan McKinnon alan.mckin...@gmail.com wrote: Head spinning yet? Just be done with all that nonsense and do this: Put this line as the only non-comment line in .bash_profile [[ -f ~/.bashrc ]] . ~/.bashrc and put all your shell start-up stuff in .bashrc (moving them out of .bash_profile if necessary This way everything is still unbelievably complex but at least the visible problems mostly just go away Wow... or rather... UGH Anyway, thanks Alan, that did indeed do the trick... :) You're welcome. I figured you deserved to have the whole ugly truth for your reading pleasure, with the option of a tl;dr of course ;-) -- Alan McKinnon alan.mckin...@gmail.com
[gentoo-user] Updating $PATH variable permanently for root not working
Not sure what I'm missing...
I login as normal user, then su - to root...
I've created /root/.bashrc, and added the following:
export PATH=${PATH}:/path/I/want/to/add
If I logout, then su - back into root, shouldn't I see the new path?
Manually exporting it during the session works, so obviously I'm missing
something...
Re: [gentoo-user] Updating $PATH variable permanently for root not working
On Sun, Jan 5, 2014 at 9:28 AM, Tanstaafl tansta...@libertytrek.org wrote:
Not sure what I'm missing...
I login as normal user, then su - to root...
I've created /root/.bashrc, and added the following:
export PATH=${PATH}:/path/I/want/to/add
If I logout, then su - back into root, shouldn't I see the new path?
Manually exporting it during the session works, so obviously I'm missing
something...
Personally, I had to create /root/.bash_profile for .bashrc:
~ # cat .bash_profile
# /etc/skel/.bash_profile
# This file is sourced by bash for login shells. The following line
# runs your .bashrc and is recommended by the bash info pages.
[[ -f ~/.bashrc ]] . ~/.bashrc
--
Alecks Gates
Re: [gentoo-user] Updating $PATH variable permanently for root not working
On 05/01/2014 17:28, Tanstaafl wrote:
Not sure what I'm missing...
I login as normal user, then su - to root...
I've created /root/.bashrc, and added the following:
export PATH=${PATH}:/path/I/want/to/add
If I logout, then su - back into root, shouldn't I see the new path?
Manually exporting it during the session works, so obviously I'm missing
something...
You are running into that crazy world called shell start-up scripts
where nothing is as it seems and every install has different levels of
crazy.
run man bash and search for the section called INVOCATION. Once you
wade through that byzantine mess, it may be apparent that ~/.bashrc is
only read when you launch an interactive non-login shell. But su -
starts a login shell, so .bashrc is never sourced.
Prove this by running su without the dash, your PATH should work then.
The usual solution is to source .bashrc from .bash_profile, this has the
effect that .bashrc is always sourced regardless of the kind of shell
you start.
Clear as mud right?
tl;dr
Long explanation:
long long ago in a land and time far far away, we have but
TheOneTrueShell(tm) and it's name was sh. This shell was very simple
and it's start up scripts followed a grand Unix tradition:
/etc/profile contained the global settings for all users
~/.profile contained a user's specific settings
And so the world was good. Until bash.
The authors of bash figured they should provide extra and wonderful ways
of providing bash-specific startup scripts. You'd think they'd do it so
the user could put their personal stuff for all shells into ~/.profile
and bash stuff into ~/.bash_profile.
But no, nothing so simple. Bash first looks for ~/.bash_profile and if
it finds it, it ignores ~/.profile entirely. So people would just add
. ~/.profile to .bash_profile and be done with it.
Then there's a distinction between a login shell (what you get at login,
or with su -) and a non-login shell (what you get with su or usually
with konsole, gnome-terminal etc). Why this difference exists, I do not
know. Maybe it's to save 512 precious bytes of environment memory.
A non-login shell reads only ~/.bashrc, presumably because the shell was
launched for something else (an Xsession, or a running shell) that had a
full environment set up already and there was no need to repeat it.
Head spinning yet? Just be done with all that nonsense and do this:
Put this line as the only non-comment line in .bash_profile
[[ -f ~/.bashrc ]] . ~/.bashrc
and put all your shell start-up stuff in .bashrc (moving them out of
.bash_profile if necessary
This way everything is still unbelievably complex but at least the
visible problems mostly just go away
--
Alan McKinnon
alan.mckin...@gmail.com
Re: [gentoo-user] Updating $PATH variable permanently for root not working
On 01/05/2014 04:14 PM, Alan McKinnon wrote:
This way everything is still unbelievably complex but at least the
visible problems mostly just go away
There is an apparently empty directory, /etc/skel, that upon closer
inspection contains some nice default bash junk:
$ ls -a /etc/skel/
total 32K
drwxr-xr-x 3 root root 4.0K 2013-06-06 10:53 .
drwxr-xr-x 113 root root 12K 2014-01-05 01:24 ..
-rw-r--r-- 1 root root 127 2013-06-06 10:53 .bash_logout
-rw-r--r-- 1 root root 193 2013-06-06 10:53 .bash_profile
-rw-r--r-- 1 root root 551 2013-06-06 10:53 .bashrc
drwx-- 2 root root 4.0K 2007-11-23 14:25 .ssh
The 'useradd' program {might,should} install these for you; if not it
can be coaxed into it with the --skel flag.
The .bash_profile in there does what Alan suggests.
