Warp wrote:
> 
> head -n 17361 mesh2.pov | tail -n `expr 17361 - 8605`
> head -17361 mesh2.pov | tail +8756
> head -17361 mesh2.pov | tail +${17361-8605}

Not using -n is not a documented feature AFAIK and my version IMO is 
much better to understand for someone not so fluent in shell programming.

Concerning use of 'cat' - of course it is never necessary to use it for 
one file but it produces much more readable code in many situations, 
especially if the program used requires the stuff from stdin (and you 
would have to use 'program < mesh2.pov').

Christoph

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