renaming silly big issue

[marcury]

hi , im trying to rename multiple objects with a little mel , but its impossible because some collateral issues , the funny thing is maya have this easy PrefixHierarchyNames; prefixHierarchy; and do the job perfect for what i need , but theres not any mel command to do it without opening a bothering window to specity the new name , its big script and in the middle of the script i have this and need to type the new name to can keep processing all the script , i want avoid this window opening but i cant find any way to rename in the same clean way as this PrefixHierarchyNames;  , anyone know how to use this without window opening ? kind of ...PrefixHierarchyNames "new_" joint1 ;    , add new to the object and all children....... if i try other renaming ways i get errors because scene have similar names or something 

[marcury]

sometimes maya is really painful for silly things........ ok i found kind of secretly this prefixNode that do the job without opening all the window UI , but...... in new maya if i try run it says... Cannot find procedure "prefixNode" , i guess to be sure i should call that prefixHierarchy .mel , any painless way to source this mel inside my script and can run the prefixNode?

[marcury]

finally fixed in other ways , pity cant use cleaner that proc