[GRASS-user] Re: How to best access hundreds of orthophotos -- mapserver as WMS server?

[Glynn Clements]

Ivan Shmakov wrote:

>  > Also the "for MAP in ``" method would need to be changed if there are
>  > thousands of maps?
> 
> 	I don't think so.  Since the `for' command is internal to the
> 	Shell, there's no command line to be passed to any other
> 	process, and so there're no command line length limits in force.
> 
> 	Still, using COMMAND | while read VARN ; do ...; done looks more
> 	clean to me.

The while/read approach saves keeping the list of maps in memory. Once
upon a time, that might have mattered; with modern systems, you would
need millions of maps before it became an issue.

-- 
Glynn Clements <glynn at gclements.plus.com>