🚀 go-pugleaf

In article <salem.711339100@pangea.Stanford.EDU>, salem@pangea.Stanford.EDU (Bruce Salem) writes:
> dejesus@archimedes.nwc.navy.mil (Francisco X DeJesus) writes:
> 
> >If I can get today's date in a shell script or C program, how can I find
> >out the dates of the next week? For example, if I know today is
> >"Wed Dec 30 1992", how can I have the program now that the next seven days
> >are going to be "Thu Dec 31 1992", "Fri Jan 1 1993", etc (taking the
> >case in which both month and year could change).
> 
> 	Look for Gregorian Date to Julian Date conversion routines. 
	[ stuff deleted ]

There is also a hack : use TZ and set to a value a negative value if
you want to go forward in time, a positive value if you want to go
backward. For instance, assuming your TZ is GMT0, to go forward one
day, try :

$ date
Mon Jul 27 23:41:44 WET 1992
$ TZ=GMT-24 ; export TZ
$ date
Mon Jul 28 23:41:54 WET 1992
$ 

To go seven days forward, use GMT-(24*7), i.e. : GMT-168

Everybody will probably say that it is something horrible to do but it
works rather well on many unix systems. (humm I didn't considered Daylight
Saving Time...)
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