GNU bug report logs - #19922
mention "LS_COLORS="

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: 積丹尼 Dan Jacobson <jidanni <at> jidanni.org>
To: bug-coreutils <at> gnu.org
Subject: mention "LS_COLORS="
Date: Sun, 22 Feb 2015 19:57:18 +0800

ls man page says:

       Using color to distinguish file types is disabled both by  default  and
       with  --color=never.  With --color=auto, ls emits color codes only when
       standard output is connected to a terminal.  The LS_COLORS  environment
       variable can change the settings.  Use the dircolors command to set it.

Add:
Or use LS_COLORS=; export LS_COLORS
to override any ls="ls --color" aliases others might have set up for us,
and thus make sure colors are off.

Message #8 received at 19922 <at> debbugs.gnu.org (full text, mbox):

From: Pádraig Brady <P <at> draigBrady.com>
To: 積丹尼 Dan Jacobson <jidanni <at> jidanni.org>, 
 19922 <at> debbugs.gnu.org
Subject: Re: bug#19922: mention "LS_COLORS="
Date: Sun, 22 Feb 2015 13:34:21 +0000

tag 19922 notabug
close 19922
stop

On 22/02/15 11:57, 積丹尼 Dan Jacobson wrote:
> ls man page says:
> 
>        Using color to distinguish file types is disabled both by  default  and
>        with  --color=never.  With --color=auto, ls emits color codes only when
>        standard output is connected to a terminal.  The LS_COLORS  environment
>        variable can change the settings.  Use the dircolors command to set it.
> 
> Add:
> Or use LS_COLORS=; export LS_COLORS
> to override any ls="ls --color" aliases others might have set up for us,
> and thus make sure colors are off.

LS_COLORS only selects colors, it doesn't enable/disable.
If unset a color set internal to ls is used.
Aliases are not used in shell scripts.
For interactive shell you can avoid with leading \ or with env:

  \ls -l
  env ls -l

cheers,
Pádraig.

p.s. since v8.23, environment variables can be used to disable ls colors,
but that's a big hammer since it's for ls to honor terminal capabilities.
To disable colors for ls (but also have other side effects):

  LS_COLORS= TERM= COLORTERM= ls -l

Message #11 received at 19922 <at> debbugs.gnu.org (full text, mbox):

From: 積丹尼 Dan Jacobson <jidanni <at> jidanni.org>
To: Pádraig Brady <P <at> draigBrady.com>
Cc: 19922 <at> debbugs.gnu.org
Subject: Re: bug#19922: mention "LS_COLORS="
Date: Sun, 22 Feb 2015 22:04:37 +0800

PB> p.s. since v8.23, environment variables can be used to disable ls colors,
PB> but that's a big hammer since it's for ls to honor terminal capabilities.
PB> To disable colors for ls (but also have other side effects):

PB>   LS_COLORS= TERM= COLORTERM= ls -l

Yes be sure that is documented.

For me,
export LS_COLORS=
saved the day when busybox forced colors down ones throat.

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