Wrong expansion of ~/

[Brian Inglis]

On 2020-08-24 06:36, Morten Kjærulff via Cygwin wrote:
> On Mon, Aug 24, 2020 at 11:52 AM Thomas Wolff wrote:
>> Am 24.08.2020 um 10:05 schrieb Morten Kjærulff via Cygwin:
>>> I have a script that starts several tmux panes with my favorite commands.
>>> In some (*some* and only *sometimes*) of the panes I see:
>>>
>>> -bash: /home/xxxxxP/.git-completion.bash: No such file or directory
>>> -bash: /home/xxxxxP/.git-prompt.sh: No such file or directory
>>>
>>> My .bashrc has:
>>>
>>> $ grep git .bashrc
>>> . ~/.git-completion.bash
>>> . ~/.git-prompt.sh
>>>
>>> My userid is xxxxxf (and not xxxxxP).
>>>
>>> Is this known?
>> What if you trace `echo $HOME; echo ~` after the `.`? I have occasional
>> cases where $HOME and ~ start to be different in my shell, which is
>> quite weird and should not happen according to bash documentation.
> 
> Ok,
> 
> My userid is xx00mkf.
> 
> 
> If I add:
> 
> . ~/.git-completion.bash
> if [ ! $? = 0 ] ; then
>   echo "HOME=" $HOME
>   echo "~=" ~
> fi
> 
> I see:
> 
> -bash: /home/xx00m/.git-completion.bash: No such file or directory
> HOME= /home/xx00mkf
> ~= /home/xx00m
> 
> 
> If I add:
> 
> . ~/.git-completion.bash
> if [ ! $? = 0 ] ; then
>   echo "HOME=" $HOME
>   echo "~=" ~
>   echo "~/.git-completion.bash=" ~/.git-completion.bash
> fi
> 
> -bash: /home/xx00m/.git-completion.bash: No such file or directory
> HOME= /home/xx00mkf
> ~= /home/xx00mkf
> ~/.git-completion.bash= /home/xx00mkf/.git-completion.bash

HOME dir depends on entries in:

	/etc/nsswitch.conf

whether you have /etc/passwd and/or /etc/group files and their entries;

your SAM and/or AD entry contents including e.g.

	$ net user $USER | grep '^Comment'
	Comment		<cygwin home="/home/..." group="Users"...>

You can check if any of these are in effect by running:

	$ getent passwd $USER

If you think they are relevant, you might also want to try to trace and debug
your bash-completion setup scripts:

	$ set -vx
	$ . /etc/profile.d/bash_completion.sh |& tee /tmp/completion.log | less

to see what they are doing that might affect other settings.

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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