Where Apps are Stored on My HDD (like "Program Files")?

[Mario Vukelic]

On Thu, 2007-05-17 at 11:31 -0500, Jason Moody wrote:
> I am really new to Linux. Ubuntu is the first Linux Distro I've ever
> used. My question is pertaining to Firefox. I'm trying to set it up so
> that when I subscribe to RSS Feeds it will use my reader. But it asks
> where the app is located. (like in Windows "Program Files") I Googled it
> and have been unable to get the answer. I believe it's /usr/lib

The applications are often split between several directories. The
executable that needs to be run is usually in /usr/bin (some system
utilities may be in /bin or /sbin.

> but I'm
> just not finding it. I'm just wanting to know where the applications I
> install are being put on my hard-drive. Thanks for any replies.

For applications that are installed by the package manager, you can
simply ask it: start the Synaptic Package Manager from the menu System|
Administration. Choose a package and click "Properties", there will be a
tab with the installed files.
On the command line, use "dpkg -L packagename".

With these methods you can see the content of packages that are alrerady
installed. For packages that are not yet installed, use "apt-file list
packagename". (You need to install apt-file first; read the
documentation for apt-file by going to menu System|Help and Support,
then searching for apt-file)