fish doesn't do math itself, unlike bash with its (( )) syntax.  In
this case it's probably easiest to use expr in a command substitution:

> set x 0
> set x (expr $x + 1)
> echo $x
1

You might also consider bc or even dc, if you like RPN.

—Tom

On Tue, Jul 10, 2012 at 2:33 PM, Patrick <patr...@spellingbeewinnars.org> wrote:
> Sorry for my poorly worded email
>
> I missed the increment part that I am particularly mixed up about
>
> set $x=$x+1
>
>
> ------------------------------------------------------------------------------
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Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
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