Given that Nuxeo currently recommends Tomcat as its associated servlet/JSP container, we're going to go to Nuxeo's download page, and select the standalone Tomcat bundle. This will download a multi-platform Zip file that you can unzip anywhere under your home directory.
Note carefully that Nuxeo already bundles the appropriate servlet engine (Tomcat, JBoss or Jetty) with that downloadable Zip file, so there is no need to independently install the servlet engine, so once you unzip that product archive file, you should be ready to go.
If you're doing this on a Linux system, it's almost a guarantee that you have an unzip command installed so you would simply run (in this case):
to get the resulting nuxeo-dm-5.4.0-tomcat/ directory. But wait; there might be more.
Apparently, some versions of the unzip utility have a bad habit of dropping the executable bit settings on scripts when unloading a Zip file, so (on Linux, at least) you can check if that's happened with:
As long as you see the "x" settings as above, you should be fine. If they're missing, you can restore them on all of the essential scripts with:
or on Mac OS X with whatever is equivalent to:
Chances are everything's fine, but make sure you check this before going any further.