Fantastic command reference for Windows, Linux, Apple and Oracle
This is going to be a reference to a really great site. I’ve used this several times and it’s wonderful. ss64.com Is a reference site that gives you a command lookup for Windows, Linux, Apple OS X, and Oracle. basically, you can browse and see the commands available, plus some of the switches.
Under linux there’s a manual utility called man . So under linux for every command in the system you should be able to get information from typing man commandname at the command line. For instance the information about the copy command can be had by typing
man cp
at the command shell. This reference gives the equivalent of that information for all of the systems mentioned above. This is a bookmark keeper.