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A.? ``)summary``
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::

 )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