[ncl-talk] manipulate date

[Dennis Shea]

That is a clever solution. I never would never have thought of that!

However, my experience is that the *nix 'date' can be a bit finicky.

In my case, it works on two *nix systems but fails on my MAC ("date:
illegal time format")

I am not sure why this should happen.

Attached is a quick and dirty NCL  function and test that (may) be more
robust

On Fri, Sep 26, 2014 at 12:22 PM, <jmason at eos.ubc.ca> wrote:

> https://www.ncl.ucar.edu/Document/Functions/Built-in/systemfunc.shtml
>
> This works for me
>
> Date = systemfunc("date '+%Y%m%d' --date '5 days'")
>
> Jesse
>
>
> > Dear ncl-team
> >     I'm using the ncl 6.1.2 on imac Darwin 64bit
> >     I need to calculate the resulting date in the form YYYYMMDD
> > (year,mounth and day)
> >     starting from an initial date YYYYMMDD of string type and adding a
> > certain number of day
> >     For example func("20140928" + 5 day) = "20141003"
> >     Has ncl a routine that do this task?
> >
> >     thanks
> > Francesco Trotta
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>
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