)help <command> gives more information
)quit : exit FriCAS
)abbreviation : query, set and remove abbreviations for constructors
)cd : set working directory
)clear : remove declarations, definitions or values
)close : throw away an interpreter client and workspace
)compile : invoke constructor compiler
)display : display Library operations and objects in your workspace
)edit : edit a file
)frame : manage interpreter workspaces
)history : manage aspects of interactive session
)library : introduce new constructors
)lisp : evaluate a LISP expression
)read : execute FriCAS commands from a file
)savesystem : save LISP image to a file
)set : view and set system variables
)show : show constructor information
)spool : log input and output to a file
)synonym : define an abbreviation for system commands
)system : issue shell commands
)trace : trace execution of functions
)undo : restore workspace to earlier state
)what : search for various things by name