TMP and TEMP get redefined, but I need the original values
Sun Jun 12 19:19:00 GMT 2011
On 12 June 2011 20:07, Ken Brown wrote:
> On 6/12/2011 1:55 PM, Roland Bluethgen wrote:
>> Hey folks!
>> I don't update my Cygwin installation regularly, but recently I did, and
>> then a script of mine stopped working.
>> Looking for the cause I found out that the Cygwin maintainers chose to
>> redefine the TEMP and TMP environment variables in /etc/profile like this:
>> unset TMP TEMP
>> Before that change, the TMP and TEMP defined by Windows were used
>> unmodified (except for cygpath translation). I'm sure the maintainers
>> have good reasons for this change. However, now I'm unable to find out
>> the original TEMP setting from a script.
>> To help your imagination what this could be good for, the purpose of the
>> script in question is for aiding in Windows maintenance, specifically
>> for cleaning up the TEMP folder.
>> I helped myself by deactivating the lines cited above in /etc/profile
>> for now, but that is clearly not a fine solution. Well, I could store
>> the original values of TMP and TEMP in backup variables, like
>> WINDOWS_TEMP or so. That would have to go in /etc/profile before the
>> variables are unset. But then, this modification would probably get
>> overwritten the next time something is changed in that file on the
>> distribution side.
> No, it wouldn't get overwritten. Your /etc/profile will only get
> overwritten if it's unchanged from the default.
That can be a problem in itself though, if you do want to benefit from
any updates. Therefore I think that the TMP/TEMP setting should go
into /etc/profile.d/temp.sh or some such, so that it can be removed or
modified without touching /etc/profile. Saving the original values
seems a good idea too.
(The reason for overriding TMP/TEMP is that having them point at the
default Windows temp directory causes odd permissions to be picked up
from that directory in some operations. IIRC, 'patch' was the
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