[Eug-lug] shell evilness

[larry price]

The original purpose (long since accomplished)
was to create a directory containing directories named after each day
of the week.

We've wandered off into low-key OS advocacy for the original free unix
and arcana about implementations of obscure utilities.

On 7/6/06, Jason LaPier <jlapier at uoregon.edu> wrote:
>
>
> > -----Original Message-----
> > From: euglug-bounces at euglug.org
> > [mailto:euglug-bounces at euglug.org] On Behalf Of larry price
> > Sent: Thursday, July 06, 2006 11:20 AM
> > To: Eugene Unix and Gnu/Linux User Group
> > Subject: Re: [Eug-lug] shell evilness
> >
> > well now,
> >
> > larry at bluejay:~/week$ rm -r *;for d in 1 2 3 4 5 6 7; do mkdir `date
> > -v+${d}d +%A`; done
> > larry at bluejay:~/week$ ls
> > Friday          Monday          Saturday        Sunday
> > Thursday        Tuesday         Wednesday
> >
> >
> > works on systems from Freebsd 4.11 to 6.1
> >
> > the disappearance of the -v option from other forms of date
> > seems counterproductive.
>
>
> If I understand correctly what you're trying to do:
>
> $ date
> Thu Jul  6 14:17:48 PDT 2006
>
> $ date -d "today + 1 day"
> Fri Jul  7 14:17:56 PDT 2006
>
> $ date +%A
> Thursday
>
> $ date -d "today + 1 day" +%A
> Friday
>
> That help?
>
> - Jason
>
>
> >
> >
> >
> > On 7/6/06, Patrick R. Wade <prwade at oip.net> wrote:
> > > larry price wrote:
> > > > mkdir $(for d in 1 2 3 4 5 6; do eval "date -v+${d}d +%A";done)
> > > >
> > > > challenge to the perl monks; do the same thing in fewer
> > characters...
> > >
> > > prwade at lusitania:~$ uname -a
> > > Linux lusitania 2.6.15-23-server #1 SMP Tue May 23 15:10:35 UTC 2006
> > > i686 GNU/Linux
> > > prwade at lusitania:~$ ( export d=1 ; date -v+${d}d +%A )
> > > date: invalid option -- v
> > > Try `date --help' for more information.
> > > prwade at lusitania:~$
> > >
> > >
> > > --
> > > On two occasions I have been asked [by members of
> > Parliament!], 'Pray,
> > > Mr. Babbage, if you put into the machine wrong figures,
> > will the right
> > > answers come out?' I am not able rightly to apprehend the kind of
> > > confusion of ideas that could provoke such a question.
> > >         -- Charles Babbage
> > > _______________________________________________
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> > >
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> >
>
>
>
> Jason LaPier
> Network Manager
> TACS / WRRC / NPSO
> University of Oregon
>
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