Uses wide list format. Displays files with specified attributes. List by files in sorted order. Displays files in specified directory and all subdirectories. That's quite a lot of help for what used to be a simple command.
Some commands provide only a few sentences.
Displays, sets, or removes Windows environment variables. Type SET without parameters to display the current environment variables. Nearly all commands in DOS have built-in help. The only problem you might face would be caused by commands that show you too much for one screen. The second method is easy.