:: Re: [DNG] yet another case of silly…
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Autore: Alessandro Selli
Data:  
To: dng
Oggetto: Re: [DNG] yet another case of silly Lennartism :p [Fwd: Our buildsystem may be broken: /bin vs /usr/bin]
On 21/11/18 at 17:37, Rowland Penny wrote:
> On Wed, 21 Nov 2018 17:28:40 +0100
> Alessandro Selli <alessandroselli@???> wrote:
>
>> On 21/11/18 at 17:22, Dr. Nikolaus Klepp wrote:
>>> Am Mittwoch, 21. November 2018 schrieb Hendrik Boom:
>>
>> [...]
>>
>>
>>>> I read the discussion at
>>>> https://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1642443.html
>>>> and it looks as if they fixed the discrepancy at version 3.5.1-2.
>>>> Which means if we want to keep sed in /bin instead of /usr/bin we
>>>> may have to patch both packages sed and r-base.
>>>>
>>>> Or maybe add a symblic link to make sed accessible from /usr/bin
>>>> instead of just /bin.
>>> Why would anybody hardcode the link to sed in the first place?
>>> Isn't that what $PATH is all about?
>>
>>   It's necessary to keep script shebangs from breaking.
>>
> No it isn't, ever heard of 'which' or 'type' or checking if the file
> actually exists.
>
> Rowland
>


  Of course it is.  If you have a file with a shebang like this:


#!/bin/sed

, which is the norm, see:

https://github.com/uuner/sedtris/blob/master/sedtris.sed

, then you'd be in trouble if sed moved in /usr/bin.


  Of course you know you can't use commands or shell constructs in place
of the shebang, you did shell_scripting-101, didn't you?




--
Alessandro Selli <alessandroselli@???>
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