6.34 Alternative Applications

Debian has a mechanism for dealing with applications that provide the same functionality. We describe here how this mechanism works and how you can use it to tune your installation.

If you have more than one variant of emacs installed (e.g., emacs19, emacs20, and xemacs) then you can configure which one you get by default with:

  $ wajig updatealts emacs

You will be asked to choose from a list of alternatives.

To specify which window manager to use as the system default:

  $ wajig updatealts x-window-manager

Suppose the window-manager you want to use as the default is not listed as available. You can install it with:

# update-alternatives --install /usr/bin/x-window-manager \
                      x-window-manager /usr/bin/mywm PRIORITY

Where PRIORITY is a number higher than the highest existing priority for the x-window-manager alternative. You can get a list of priorities with:

# update-alternatives --display x-window-manager

To remove a Window Manager:

# update-alternatives --remove x-window-manager /usr/bin/mywm

Your donation will support ongoing availability and give you access to the PDF version of this book. Desktop Survival Guides include Data Science, GNU/Linux, and MLHub. Books available on Amazon include Data Mining with Rattle and Essentials of Data Science. Popular open source software includes rattle, wajig, and mlhub. Hosted by Togaware, a pioneer of free and open source software since 1984. Copyright © 1995-2022 Graham.Williams@togaware.com Creative Commons Attribution-ShareAlike 4.0