This script is for Blender. Rename objects, meshes, bones and materials' name.

rename.py

import bpy

for obj in bpy.data.objects:
    obj.name = 'replaceObjectName'
    
for mesh in bpy.data.meshes:
    mesh.name = 'replaceMeshName'
    
for armature in bpy.data.armatures:
    armature.name = 'replaceArmatureName'
    
    for bone in armature.bones:
        bone.name = 'replaceBoneName'
    
for material in bpy.data.materials:
    material.name = 'replaceMaterialName'

How use this script?