(bourne)shell variable names containing a variable?

[Emanuel Strobl]

Hello,

I try to assign a value to a variable, but the variable should consist of 
another variable. Is this possible (in bourne shell)?

Example:

#!/bin/sh
list="one two three four"

for item in $list; do
  ${item}_present=yes
done

This doesn't work since the shell tries to execute "one_present=yes" 
instead of assigning yes to one_present....

What am I missing????

Thanks a lot,

-Harry
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