latex: adding citations without citing

For one citation with name CITATION

 \nocite{CITATION}  

But it can also be used for all citations in the bibfile with:

 \nocite{*}  

bash "--" = no more options

This one is a bash tweak! If you need to tell a bash script, that there are no more options to come you can just add -- after all comments.
This is especially helpfull if a keyword after that has to start with a minus.

 rename -- -help help *  

renames the -help into help in all files.