tom@tom-desktop:~$ Sudo apt-get install wine bash: Sudo: command not found tom@tom-desktop:~$ sudo apt-get install wine [sudo] password for tom: Reading package lists... Done Building dependency tree Reading state information... Done Package wine is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package wine has no installation candidate tom@tom-desktop:~$