Move all JPGs and rename them into one directory

Solution 1:

Use the numbered when using mv

numbered, t
make numbered backups

man mv

mv --backup=TYPE with type being 1 of these:

  • none, off never make backups (even if --backup is given)
  • numbered, t make numbered backups
  • existing, nil numbered if numbered backups exist, simple otherwise
  • simple, never always make simple backups