x-terminal-emulator
é um virtual package . O emulador de terminal é configurado pelo sistema alternativo do Debian.
No Ubuntu, você pode seguir facilmente essa construção de links simbólicos, por exemplo, para gnome-terminal:
$ which x-terminal-emulator
/usr/bin/x-terminal-emulator
$ ll /usr/bin/x-terminal-emulator
/usr/bin/x-terminal-emulator -> /etc/alternatives/x-terminal-emulator*
$ ls -al /etc/alternatives/x-terminal-emulator
/etc/alternatives/x-terminal-emulator -> /usr/bin/gnome-terminal.wrapper*
Agora, com relação às man pages, update-alternatives
também vincula a página de manual de gnome-terminal
a x-terminal-emulator
, conforme explicado no manual update-alternatives
:
It is often useful for a number of alternatives to be synchronized, so that they are changed as a group; for example, when several versions of the vi(1) editor are installed, the man page referenced by /usr/share/man/man1/vi.1 should correspond to the executable referenced by /usr/bin/vi. update-alternatives handles this by means of master and slave links; when the master is changed, any associated slaves are changed too. A master link and its associated slaves make up a link group.