How do I find all files of a specific type that are outside of a folder?
Basically you take the list of applications found and filter out those who are in /Applications:

find / -type d -iname *.app | grep -v '^/Applications' &gt; ~/applications.txt


The more elaborated way skips /Applications from the start and just lists .apps found in other directories:

find / -type d \( \( -depth 1 -name Applications -prune \) -o -name '*.app' -print \)


In both cases you might get warning messages if find tries to descend into a directory not accessible to the current user. You can prevent this by running the command with sudo.