program files dir equal
 

Where in linux is the equal to the program files dir in windows? I am installing things like firefox, and want all users to be able to access it. What do you suggest I do?

Your distro probably puts the "standard" stuff in /usr/bin. Typically packages that you install yourself go into /usr/local/bin. You can put your software whereever you like. All you need to do is edit the user's PATH to include the location.

You should put firefox & any other programs that you install in the same directory (For consistency). Most people use /usr/local, or /opt.

You will need to create symbolic links to the executables in /usr/bin, so that all users can run them. For example "ln -s /opt/firefox/firefox /usr/bin".

If you want to install programs for just a user, it must be installed in that users home directory, I use /home/ian/prog for this.

I hope this helps
--Ian