FBX 2013.3 plugin for Maya2013.5 on Linux is not installed

To
install the Maya FBX plug-in:

1. Find the 2013.3 FBX installer which is included with the Maya
   2013.5 install package.
2. Remove
   the old plug-in from the /usr/Autodesk/maya<ver>/bin/plug-ins/
   (where <ver>
   is the version of Maya you have installed,) directory by entering rm –f fbxmaya.so at the
   command prompt.
3. Type
   the following command to install the Maya FBX
   plug-in:

./fbx<ver>_maya<ver>_linux_enu

(Where FBX<ver> is the
version of the Maya FBX plug-in you have
installed).

This
installs the plug-in to the following directory:

/usr/Autodesk/maya<ver>/bin/plug-ins/
(where <ver>
is the version of Maya you have installed).

If you
install Maya in another folder, you can specify the path on the Command Line
after: ./fbx<ver>_maya<ver>_linux_enu /home/maya/mypath/

(Where FBX<ver> is the
version of the Maya FBX plug-in you have
installed.)

1. Start
   Maya and navigate to Window > Settings/Preferences > Plug-in
   Manager.
2. Activate
   the Loaded option for Fbxmaya.so in the Plug-in Manager.
3. Activate
   the Fbxmaya.so Autoload option so Maya loads the Maya FBX plug-in automatically at start-up.