Re: bash completion mangles file names with newlines

[Alex fxmbsw7 Ratchev]

besides not running newest bash

On Wed, Feb 23, 2022, 17:36 Ian! D. Allen <idallen@idallen.ca> wrote:

> Configuration Information [Automatically generated, do not change]:
> Machine: x86_64
> OS: linux-gnu
> Compiler: gcc
> Compilation CFLAGS: -g -O2
> -fdebug-prefix-map=/build/bash-a6qmCk/bash-5.0=. -fstack-protector-strong
> -Wformat -Werror=format-security -Wall -Wno-parentheses -Wno-format-security
> uname output: Linux ubuntu20-04 5.13.0-30-generic #33~20.04.1-Ubuntu SMP
> Mon Feb 7 14:25:10 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
> Machine Type: x86_64-pc-linux-gnu
>
> Bash Version: 5.0
> Patch Level: 17
> Release Status: release
>
> Description:
>         BASH completion cannot correctly handle file names containing
> newline characters.
>
> Repeat-By:
>         # First, get a shell with no completion loaded and show it working:
>         $ bash --norc
>         bash-5.0$ ls -b
>         one\ntwo\nthree\nfour\nfive\nsix
>         bash-5.0$ xxx <TAB>'one
>         two
>         three
>         four
>         five
>         six'
>         bash-5.0$ touch foo
>         bash-5.0$ xxx <TAB>
>         foo                               one^Jtwo^Jthree^Jfour^Jfive^Jsix
>         bash-5.0$ xxx <TAB>'one
>         two
>         three
>         four
>         five
>         six'
>
>         # Now, load the completion scripts and watch it break:
>         bash-5.0$ source /usr/share/bash-completion/bash_completion
>         bash-5.0$ ls -b
>         foo  one\ntwo\nthree\nfour\nfive\nsix
>         bash-5.0$ xxx <TAB>
>         five   foo    four   one    six    three  two
>         bash-5.0$ xxx o<TAB>
>         five   four   one    six    three  two
>
>         # The last two completions are garbage.
>         # The file name is being split on newlines.
>
> --
> | Ian! D. Allen, BA-Psych, MMath-CompSci  idallen@idallen.ca Ottawa CANADA
> | Home: www.idallen.com  Contact Improvisation Dance: www.contactimprov.ca
> | Former college professor of Free/Libre GNU+Linux @ teaching.idallen.com
> | Improve democracy www.fairvote.ca and defend digital freedom www.eff.org
>
>