command. Prints information from the reference manual about the primitive procedure named by the input. With no input, lists all the primitives about which help is available. If there is an environment variable ALOGOHELP, then its value is taken as the directory in which to look for help files, instead of the default help directory.
Exceptionally, the HELP command can be used without its default input and without parentheses provided that nothing follows it on the instruction line.
LogoHelpDir(3), Release Notes for Version 4.68(3), helpsearch(3), setLogoHelpDir(3), Release Notes for Version 4.64(2), Release Notes for Version 4.65(2), WindowGetHelpText(2), WindowSetHelpText(2), Multithreading, Release Notes for Version 4.67, Release Notes for Version 4.684, Release Notes for Version 4.7, ShellSpawn, WindowSetExtraStyle, WordUnderCursor, setCaseIgnored