Date: Sun, 12 Dec 2010 11:26:43 -0800 (PST) From: Mark Terribile <materribile@yahoo.com> To: Derrick Ryalls <ryallsd@gmail.com> Cc: S Mathias <smathias1972@yahoo.com>, freebsd-questions@freebsd.org Subject: Re: freebsd-questions Digest, Vol 340, Issue 15 Message-ID: <636022.69287.qm@web110310.mail.gq1.yahoo.com> In-Reply-To: <AANLkTi=DwZKv9ZnkzLGL_bJn4LUjkxxoZ81akTRc0A%2BJ@mail.gmail.com>
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Okay, per private correspondence, here's one that works for the rule (insert your
own upper limit):
(( s = -3, d = -1 )) ; while (( i = ( s += 2 + ( d = -d ) ), i <= 12 )) ; do
echo "Welcome $i times"
done
Yeah, this needs an explanation in the comments, and it might be tricky to
extend to other sequences. But I think I could do it for most reasonable ones.
--- On Sun, 12/12/10, Derrick Ryalls <ryallsd@gmail.com> wrote:
From: Derrick Ryalls <ryallsd@gmail.com>
Subject: Re: freebsd-questions Digest, Vol 340, Issue 15
To: "Mark Terribile" <materribile@yahoo.com>
Cc: "S Mathias" <smathias1972@yahoo.com>, freebsd-questions@freebsd.org
Date: Sunday, December 12, 2010, 1:22 PM
On Sun, Dec 12, 2010 at 9:45 AM, Mark Terribile <materribile@yahoo.com> wrote:
>
> It's ok, that i can use this, when i want an incrementing
> sequence, in a given way:
>
> # {START..END..INCREMENT}
> $ for i in {0..10..2}; do echo "Welcome $i times"; done
> Welcome 0 times
> Welcome 2 times
> Welcome 4 times
> Welcome 6 times
> Welcome 8 times
> Welcome 10 times
> $
>
> but what's the "magic" for this? :
>
> $ MAGIC; do echo "Welcome $i times"; done
> Welcome 0 times
> Welcome 1 times
> Welcome 4 times
> Welcome 5 times
> Welcome 8 times
> Welcome 9 times
> $
What's wrong with
for i in 0 1 4 5 8 9 ; do echo "Welcome $i times"; done
?
Or is there some rule that you want followed? If there is, it's not
obvious to me. (Sorry.)
Mark Terribile
+1, +3, +1, +3....
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