Debian Bug report logs - #781404
dd: BASH completion overwrites option prefix

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: David McMackins <contact@mcmackins.org>

To: submit@bugs.debian.org

Subject: dd: BASH completion overwrites option prefix

Date: Sat, 28 Mar 2015 12:30:47 -0500

Package: coreutils
Version: 8.23-4
Severity: minor

Dear Maintainer,

Steps:

Be in directory with "myimage.iso"
begin typing: dd if=myima
Press Tab
Turns into: dd myimage.iso

This removal obviously is invalid input to dd

-- System Information:
Debian Release: 8.0
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages coreutils depends on:
ii  libacl1      2.2.52-2
ii  libattr1     1:2.4.47-2
ii  libc6        2.19-17
ii  libselinux1  2.3-2

coreutils recommends no packages.

coreutils suggests no packages.

-- no debconf information


Happy Hacking,

David E. McMackins II
Associate, Free Software Foundation (#12889)

www.mcmackins.org www.delwink.com
www.gnu.org www.fsf.org

Message #8 received at 781404@bugs.debian.org (full text, mbox, reply):

From: Bob Proulx <bob@proulx.com>

To: David McMackins <contact@mcmackins.org>, 781404@bugs.debian.org

Subject: Re: Bug#781404: dd: BASH completion overwrites option prefix

Date: Sat, 28 Mar 2015 14:20:55 -0600

[Message part 1 (text/plain, inline)]

reassign 781404 bash-completion
tags 781404 + unreproducible moreinfo
thanks

David McMackins wrote:
> Be in directory with "myimage.iso"
> begin typing: dd if=myima
> Press Tab
> Turns into: dd myimage.iso
> 
> This removal obviously is invalid input to dd

Thank you for your report.  If this behavior was being caused by the
system then it should be fixed.  This bug obviously has nothing to do
with either dd or coreutils and therefore shouldn't be assigned there.
I have reassigned it to the closest existing match bash-completion
although I don't believe this to be a bug in bash-completion either.
But the experts for debugging bash completion problems reside there.

I am unable to recreate this bug.  I am thinking it must be due to
something on your individual system or in your individual
environment.  To debug I would verify that it isn't caused by
something in your .profile, .bash_profile, or .bashrc files.  I would
either comment out or move the entire files out of the way for a test
to verify that the contents thereof are not affecting things.

Have you tried this using a pristine user account?  Try that.  Create
a new user.  Log into the new account as that user.  Then perform the
test case again.  Does it behave correctly or incorrect?  If correctly
then you will know the problem is somewhere within your user
environment settings.  If not then that will produce a pristine
setting for a better test case.

Bob

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Message #19 received at 781404@bugs.debian.org (full text, mbox, reply):

From: Peter Cordes <peter@cordes.ca>

To: 781404@bugs.debian.org

Cc: bash-completion-devel@lists.alioth.debian.org, mstone@debian.org

Subject: Re: [Bash-completion-devel] Processed: Re: Bug#781404: dd: BASH completion overwrites option prefix

Date: Sat, 28 Mar 2015 19:04:46 -0300

Programmable completion bugs very often get reported in the wrong
place.  Most users aren't aware of how exactly it happens under the
hood.  Also, some packages do ship custom completions for the commands
they provide.

 In this case, dd completion is dynamically loaded from
/usr/share/bash-completion/completions/dd, a file maintained by
the bash-completion package.

$ complete -p dd
complete -o nospace -F _dd dd


Usually un-reproducible broken-behaviour reports come from people with
old cruft in /etc/bash_completion.d.  Every file in there is sourced
when the main bash-completion script loads.  Old acroread packages
were notable for re-defining bash-completion standard functions in a
way that broke things.

So, David, check everything in /etc/bash_completion.d to make sure
apt thinks it SHOULD be there, or that you put it there yourself.

e.g. on my system
$ dpkg -S /etc/bash_completion.d/* > /dev/null
dpkg-query: no path found matching pattern /etc/bash_completion.d/dput.dpkg-old
dpkg-query: no path found matching pattern /etc/bash_completion.d/git.dpkg-old

found files get printed on stdout, hence the redirect.

-- 
#define X(x,y) x##y
Peter Cordes ;  e-mail: X(peter@cor , des.ca)

"The gods confound the man who first found out how to distinguish the hours!
 Confound him, too, who in this place set up a sundial, to cut and hack
 my day so wretchedly into small pieces!" -- Plautus, 200 BC

Message #22 received at 781404@bugs.debian.org (full text, mbox, reply):

From: mishin@maestro.beget.ru

To: 781404@bugs.debian.org

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Date: Fri, 30 Oct 2015 05:48:21 +0300

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Message #27 received at 781404@bugs.debian.org (full text, mbox, reply):

From: Jonas Linde <jonasjlinde@gmail.com>

To: 781404@bugs.debian.org

Subject: Re: #781404 dd: BASH completion overwrites option prefix

Date: Tue, 22 May 2018 11:51:22 +0200

Hello,

The advice to check /etc/bash_completion.d turned out to be good one. In my case it was
the nmp package that installs a file there which removes the = character (and @) from the
COMP_WORDBREAKS variable which breaks completion for other packages, eg. dd and kubectl.

Cheers,
-- 
Jonas Linde <jonas.j.linde@gmail.com> - http://jonaseel.se/ - +46-707-492496

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