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bug#17121: tr result is different when executed in /usr/bin
From: |
Pádraig Brady |
Subject: |
bug#17121: tr result is different when executed in /usr/bin |
Date: |
Thu, 27 Mar 2014 16:00:29 +0000 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130110 Thunderbird/17.0.2 |
tag 17121 notabug
close 17121
stop
On 03/27/2014 09:43 AM, Benoît DUNAND-LAISIN wrote:
> Problem discovered in tr (GNU coreutils) 8.13 on a Ubuntu 12.04.
>
> Running those commands:
>
> cd $HOME
> echo "Linux" | tr [:upper:] [:lower:]
>
> will result: linux
>
> Running the same from /usr/bin:
>
> cd /usr/bin
> echo "Linux" | tr [:upper:] [:lower:]
>
> will result: winux
> which is obviously a bad answer.
>
> In debug mode:
>
> sh -xc "echo "Linux" | tr [:upper:] [:lower:]"
> + echo Linux
> + tr [:upper:] w
> winux
You debugged correctly but failed to see that
tr was getting passed the wrong options. See 'w' above.
That's because the shell is interpreting the [...]
You need to quote it:
$ echo 'Linux' | tr '[:upper:]' '[:lower:]'
thanks,
Pádraig.
p.s. cd without the $HOME changes to the home directory