Help with awk

I bet awk has it's own user list but before I go and subscribe to another
one, I figured I would ask here first.  I have the following awk code that
is trying to set a variable of the shell it is running in.  It doesn't
work and I've searched high and low to see how to get it to do so.

The reason I don't just use DOMAIN= 'awk blah blah blah' is I want to set
more than one shell variable for each record.  But I have to get this
working first.  :(

#!/bin/bash

awk '{FS=":"}{system ("DOMAIN=" $1); }
        {system ("DOMAIN="$1)};
        {system ("echo \"$DOMAIN\"")};
' /etc/passwd

Any help would be appreciated.




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