2007-05-31, 08:28(-07), wolffc@gmail.com:
> I have a process the uses the date function to get the last month and
> the current month. Here are the functions
>
> set x = `date -d "-1 month" +%b`
> set y = `date -d "0 month" +%b`
>
> For some reason x and y are both May. Does this have something to do
> with May being 31 days? This had been working all of April and all of
> May. I am using csh
[...]

Yes, that's probably the reason.

You can do (sh syntax):

LC_ALL=C date +%bDecJanFebMarAprMayJunJulAugSepOctNovDec |
sed 's/\(...\).*\(...\)\1.*/\2/'

I'd recommend not to use csh for scripting.

--
Stéphane