sudo update-alternatives --install [target_path] [alternative_name] [source_path] [priority]

• alternative_name -> name for managing alternative

• target_path -> usuall /usr/bin/{alternative_name} (if you want to use same command as alternative_name)

• source_path -> source path of binary you can use $(which COMMAND)

• priority -> priority number for alternative (useful when multiple alternatives for one)

Example:

sudo update-alternatives --install /usr/bin/python python $(which python3) 10

• /usr/bin/python -> target

• python -> Alternative name

• $(which python3) -> gives the source for python 3

• 10 -> Priority