/usr/share/texlive/texmf-dist/tex/generic/catcodes/catcodes.RLS is in texlive-generic-extra 2013.20140215-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | \ProvidesFile{catcodes.RLS} %% RELEASE INFO
[2012/11/07 r0.1a documentation corrected/extended]
[2012/09/20 r0.1 initial release]
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