How can I get the name of a (selected) shape node?

In general, you can use ls -sl for getting the names of currently selected nodes. To get shape node names only, you can use ls -s.

You can also use the listRelatives command to get the names of all the shape nodes that are hierarchically below (that is, child nodes) the currently selected nodes. For example:

string obj[]= `ls -sl`;
 listRelatives -s $obj[0];

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