I'm trying to update tortoisehg as the current version that I have is 2.2, however:
$ sudo apt-get install tortoisehg
tortoisehg is already the newest version
I have also tried these commands:
sudo add-apt-repository ppa:tortoisehg-ppa/releases
sudo apt-get update
sudo apt-get install tortoisehg
But I'm getting add-apt-repository: command not found