Following there are descriptions of the standard DOS commands which are
builtin in ZShell (and therefore need not be loaded from disk).
Square brackets [] mean that the argument enclosed in is optional.
A vertical bar | separates multiple possibilities, choose only one.

 AddBuffers  drive [number_of_buffers]
 Assign  [logical name:] [directory] [ADD|DEFER|PATH|REMOVE]
 Cd  [destination]
 Copy  [-R] [-S] source1 [source2] ... [destination]
 Delete  [-R] [-Q] source1 [source2] [source3] ... [FORCE]
 Delete Device  devicename [name [filesystem]]
 Dir  [-R] [-Q] [source1] [source2] ...
 FileNote  file|directory comment
 HType  source [offset]
 Info 
 Join  [-R] [-S] source1 [source2] ... destination
 List  [-R] [-Q] [source1] [source2] ...
 Lock  device ON|OFF
 MakeDir  directory1 [directory2] ...
 MakeIcon  filename [icontype]
 MakeLink  linkname filename [SOFT]
 More  source [line_count]
 Move  [-R] [-S] source1 [source2] ... [destination]
 Protect  [-R] [-S] [file/dir1] [file/dir2] ... [+|-|=|h|s|p|a|r|w|e|d]
 Relabel  drive newname
 Rename  source destination
 Resident  [command1] [command2] ...
 Search  file search_string
 SetDate  file|directory [date/time]
 Split  [-Q] source dest length [offset]
 Type  source