Command lines document

I’m very confusing, there are many word command line type like: cbc ,cbq ,cli , client. ,GET ,POST ,REST ,… and I could find appropriate reference doc for them.
is there any one here to provide me brief docs to learn and find differences between them.


For cbc you can find man page here (or just run man cbc)

For others you can look into corresponding section of the server docs

many thanks for your reply.