GNU bug report logs - #19654
tr command odd behavior on Linux Platform

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

From: Kousik Mandal <kousikmandal <at> gmail.com>
To: bug-coreutils <at> gnu.org
Subject: tr command odd behavior on Linux Platform
Date: Thu, 22 Jan 2015 15:22:42 +0530

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

Hi Team,

I am observing an unexpected behavior with tr command. In a directory if
there exist one file named a and executing following tr command.
---script---
myVar="Hello World"
$ echo $myVar|tr [A-Z] [a-z]
---script---

It gives Output: aello aorld

Where as if there exist another file/directory named b then the same
command it failing with below error

---script---
myVar="Hello World"
$ echo $myVar|tr [A-Z] [a-z]
---script---

Output:
tr: extra operand `b'
Try `tr --help' for more information.

If only file b is present then the same command is not failing but it give
wrong output.

---script---
myVar="Hello World"
$ echo $myVar|tr [A-Z] [a-z]
---script---

Output:
Hello World

Same type of observation found if only a single alphabetic name file or
directory is exist.

Can you please update me it is a bug or expected behavior?

Thanks,
Kousik

[Message part 2 (text/html, inline)]

Message #8 received at 19654 <at> debbugs.gnu.org (full text, mbox):

From: Pádraig Brady <P <at> draigBrady.com>
To: Kousik Mandal <kousikmandal <at> gmail.com>, 19654 <at> debbugs.gnu.org
Subject: Re: bug#19654: tr command odd behavior on Linux Platform
Date: Thu, 22 Jan 2015 18:11:47 +0000

tag 19654 notabug
close 19654
stop

On 22/01/15 09:52, Kousik Mandal wrote:
> Hi Team,
> 
> I am observing an unexpected behavior with tr command. In a directory if there exist one file named a and executing following tr command.

This is becoming a FAQ:
http://lists.gnu.org/archive/html/coreutils/2014-12/msg00041.html

thanks,
Pádraig.

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