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To: Sven Guckes <guckes@math.fu-berlin.de>
Cc: ZShell Users List <zsh-users@math.gatech.edu>
Subject: Re: counting in "for" loops
References: <19981202170030.A2789@math.fu-berlin.de>
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From: Bruce Stephens <b.stephens@isode.com>
Date: 02 Dec 1998 16:50:42 +0000
In-Reply-To: Sven Guckes's message of "Wed, 2 Dec 1998 17:00:32 +0100"
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Sven Guckes <guckes@math.fu-berlin.de> writes:

> Again, I look at the manual and  I cannot find
> how to do a simple count within a for loop.
> 
> 	$ for count in ???; do
> 	> echo -n $count
> 	> done
> 	1 2 3 4 5 6 7 8 9 10

This works for me (with zsh-3.1.4):

for ((count=1; count<=10; count++)); do
echo $count
done

> Why isn't this in the manual as an example?  *sigh*

The manuals don't have many examples, currently.  By all means
contribute things that you'd like to see in future versions, and this
example seems useful.  Although something like:

for ((count=0; count<10; count++))

would be a more common sort of requirement.

Alternatively {1..10} will expand to a list containing the numbers, so

for count in {1..10}; do
...

might be sufficient for what you want.  Doing the same for
{1..1000000} and things will take more memory than is optimal, though.