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To:	cygwin AT cygwin DOT com
From:	Will Parsons <wbp AT nodomain DOT invalid>
Subject:	[SOLVED] Re: tcsh path conversion messed up?
Date:	Tue, 7 Nov 2017 22:07:53 +0000 (UTC)
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Lemke, Michael  ST/HZA-ZIC2 wrote:
> On Tuesday, November 07, 2017 7:12 AM Brian Inglis wrote:
>>On 2017-11-06 14:59, Will Parsons wrote:
>>> Will Parsons wrote:
>>>> I asked about what I thought was a shell scripting problem:
>>>>    PATH=/usr/local/bin:/usr/bin:/bin:/usr/sbin:/c/Windows/system32:/c/Windows:/c/Windows/system32/wbem:/c/ProgramData/Oracle/Java/javapath:/c/Program:Files/Common:Files/Microsoft:Shared/Windows:Live:/c/Program:Files:(x86)/Common:Files/Microsoft:Shared/Windows:Live:/c/Program:Files/Dell/DW:WLAN:Card:/c/Program:Files:(x86)/Intel/iCLS:Client:/c/Program:Files/Intel/iCLS:Client:/c/Windows/System32/WindowsPowerShell/v1.0:/c/Program:Files/WIDCOMM/Bluetooth:Software:/c/Program:Files/WIDCOMM/Bluetooth:Software/syswow64:/c/Program:Files:(x86)/Windows:Live/Shared:/c/Program:Files:(x86)/Bazaar:/c/Program:Files:(x86)/QuickTime/QTSystem:/c/cygwin/home/william/bin:/c/ezwinports/bin:/c/Program:Files:(x86)/PuTTY:/usr/lib/lapack
>>>>
>>>> This doesn't look right, and would explain the strange shell output I
>>>> reported.  (The value of PATH under bash looks normal.)  Did the installation
>>>> of tcsh somehow get corrupted?  I don't remember a particularly recent update
>>>> to tcsh.
>
> How are you setting path? Do you have anything in your .cshrc/.login file? Most
> likely, you are doing it wrong. 
>
>>> Another bit of info - I just noticed that the value of the (t)csh shell
>>> variable 'path' is:
>>
>>In csh, "PATH" is a standard Unix environment variable whose value is a colon
>>separated directory list, and "path" is a shell wordlist kept synchonized with
>>"PATH".
>>To list the wordlist entries with embedded spaces in csh, quote the variable
>>name with the :q modifier in a foreach loop wordlist, and you get the desired
>>result as easily as in your sh script [trimmed and ...s redacted]:
>>
>>.......% foreach p ( $path:q )
>>foreach?	echo $p
>>foreach? end
>
> And that is also key for setting path:
>
> set path = ( ... $path:q )
>
> I had this bug ($path instead of $path:q) for 20 years in my init files.

Bingo!  I had this line in my ~/.cshrc:

  set path = ( /usr/local/bin /usr/bin /bin /usr/sbin $path )

Changing $path to $path.q solved the problem.

(I am still somewhat puzzled, though - the original PATH that I quoted in my
original query did have spaces, so what changed?)

At any rate, the problem seems to be solved, so thank you very much.

-- 
Will


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