Solaris

for parm in `ndd /dev/net/qlge2 \? | awk '{ print $1 }' | grep -v '?'`;
do
    echo -n $parm:
    ndd /dev/net/qlge2 $parm 2> /dev/null
done

operation:operation failed: Invalid argument
bash-3.2# sh -x auto
+ grep -v ?
+ awk { print $1 }
+ ndd /dev/qlge2 ?
+ echo -n operation:
-n operation:
+ ndd /dev/qlge2 operation
operation failed: Invalid argument

bash-3.2# ndd /dev/qlge \?
operation failed: Invalid argument