I was trying to configure a FreeRADIUS server and, as is the tendency in Linux, devs confuse documentation for configuration. I’d much prefer a .conf file without the entire documentation embedded in it.. I’d rather a README in the root, a /docs or a man file instead.

Anyhoo, how to remove all the garbage and just get the .conf file commands only?

$ sed '/^$/d; /#/d' radiusd.conf.original > radiusd.conf

This removes all blank lines and all lines beginning with ‘#’ and now you have a nice compact .conf file. File goes from ~27k to 1.3k.

Noice.