/usr/share/doc/texlive-doc/latex/ctable/04b is in texlive-latex-recommended-doc 2013.20140215-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | \ctable[
caption = Caption,
captionskip = -2ex,
botcap
]{c}{}{\FL Table's first row\LL}
|