On Thu, Jun 09, 2011 at 12:39:04PM -0500, Edward McGuire wrote: >On Thu, Jun 9, 2011 at 02:46, EXCOFFIER Denis ><denis.excoff...@c-s.fr> wrote: >> It seems that /usr/bin/cygcheck does not interpret TZ the same way >> as /usr/bin/date does, in the case TZ is set to a file name >> [snip] >> jupiter% (setenv TZ /usr/share/zoneinfo/Europe/Monaco; date; cygdate) > >There are two standard syntaxes for TZ. One begins with a timezone >name, the other begins with a colon (:). If you supply a colon, then >the rest of the string is interpreted in an operating system >specific manner. GNU interprets it as a pathname. And Cygwin uses >GNU's time library.
If by "Cygwin" you mean the dll, then it doesn't use GNU's time library but it does try to match the same behavior. >Na??vely, I thought you might just lack a colon on the front of the >pathname. I confirmed time(1) honors the pathname syntax. But >cygcheck(1) mysteriously interprets all pathnames as GMT + 1 hour: > >$ TZ=:/usr/share/zoneinfo/US/Central cygcheck -s | head -3 | tail -1 >Current System Time: Thu Jun 09 18:23:42 2011 cygcheck is a non-Cygwin application. It is not surprising that it would not interpret TZ in a way that is consistent with linux. It really makes no sense at all to use cygcheck as some sort of method to report the system time. Use 'date(1)'. >$ TZ=:/usr/share/zoneinfo/Europe/Monaco cygcheck -s | head -3 | tail -1 >Current System Time: Thu Jun 09 18:23:49 2011 >$ TZ=:/usr/share/zoneinfo/GMT cygcheck -s | head -3 | tail -1 >Current System Time: Thu Jun 09 18:23:56 2011 >$ TZ=:/usr/share/zoneinfo/Asia/Calcutta cygcheck -s | head -3 | tail -1 >Current System Time: Thu Jun 09 18:23:59 2011 > >It gets local time right: > >$ cygcheck -s | head -3 | tail -1 >Current System Time: Thu Jun 09 12:25:04 2011 > >And it gets GMT right: > >$ TZ=GMT cygcheck -s | head -3 | tail -1 >Current System Time: Thu Jun 09 17:31:32 2011 > >So cygcheck(1) is honoring TZ, but it trips over a pathname in a >way that date(1) does not. And date(1) is what you should be using. cgf -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
