Use iControl API to query for node list for IP verification and hostname resolve.

In case you are considering a plain tmsh based solution the following approach may help as well:

 tmsh -q -c "cd /; list ltm node recursive one-line"
ltm node Common/CommonNode_181 { address 10.131.131.181 }
ltm node partitionA/partionA_Node_182 { address 10.131.131.182 partition partitionA }
ltm node partitionB/partionB_Node_183 { address 10.131.131.183 partition partitionB }

 tmsh -q -c "cd /; list ltm node recursive one-line" | awk '{print $3}'
Common/CommonNode_181
partitionA/partionA_Node_182
partitionB/partionB_Node_183


 tmsh -q -c "cd /; list ltm node recursive one-line" | awk -F '[ /]' '{print $4}'
CommonNode_181
partionA_Node_182
partionB_Node_183

Thank, Stephan