pLAMBDA CALCULUS INTERPRETER:q
 lc   : Lambda Calculus Mode      cl : Combinatory Logic Mode
 conv { bc[+][-], ext[+][-] }        : Combinatory Abstraction Algorithm[s]
 trace[+][-] { pp[+][-] }            : Trace display, pretty-print [on][off]
 { do } ( <term> .. <term> )         : Evaluate <term[s]>
 lib[+][-]                           : Default library [on][off]
 open <file>, print+ <file>, print-  : Shell history to <file> [new][on][off]
 def[][nf][rec] <name> = <term>      : Defining modes
 put <file>, get <file>              : Current definitions to | from <file>
 list, show <name>                   : Show current definition[s]
 copy [rename] <name1> <name2>       : Define <name2> as <name1>
 new, delete <name>                  : Forget user definition[s]
pSYSTEM COMMANDS:q
 talk[+][-]                          : Interactive mode, error report [on][off]
 cat <file>, rm <file>               : View [= visit] <file>, delete <file>
 read <command-file>                 : Execute commands from <command-file>
 sh[+][-]                            : [De]activate the current shell [if any]
 !, !!                          [SH] : Escapes to the current shell [if any]
 pwd, ls                             : Show name, list contents of cwd
 cd [mkdir][rmdir] <path>            : Change [make][remove] <path>-dir
 mem, du, date                       : Free memory, disk usage, system time
 ed {<options> <file>]}              : Call the system editor [\bin\ed.prg]
 edit {<file>}                       : Call the built-in editor [edit]
 exit                                : Quit the [MAIN] interpreter

pLOCAL COMMANDS [ATARI.ST MODE]:q
Keyboard supervisor [single-key commands on tracing]:
 SPACE                               : Stop [Set stepwise tracing]
 s[S]                                : Wait [REPEATED: stepwise tracing]
 p[P]                                : Toggle trace pretty-printer [on/off]
 q[Q][ESC]                           : Abort current execution [Top level!]
 !                                   : Abort and exit [Quit interpreter!]
 <any other key>                     : Restore [continuous tracing]
TOS-shell supervisor [line-commands]:
 sound[+][-]                         : Set bell-sound [on][off]
 cls, cursor[+][-]                   : Clear screen, cursor home [on][off]
 black/white, graphics[+][-]         : Toggle background color, graphics mode
 font <font-name>                    : Alternate font: \lib\<font-name>.fnt
 TOS  [tos]  <prog-path/prog-name>   : Execute <prog-path/prog-name>.tos
 EXEC [exec] <path/name> {<options>} : Execute <path/name>.prg <options>
 TTP  [ttp]  <path/name> {<options>} : Execute <path/name>.ttp <options>
 meta                                : Escape to the internal shell [META]
 install, env                        : [META] Install, show dir-environment
 sys                                 : [META] Change the current shell-type
 shell, !!                           : [META] TOS-escapes to current shell
 boot                                : [META] Re-boot LAMBDA internally
 alter <new-options>                 : [META] Re-boot LAMBDA <new-options>
 help                                : [META] On-line help: [META] commands

p! META COMMAND SET:q
 install, env              Install, display the current [META] dir-env
 boot                      Boot [intern] <lambda>.ttp <old-options>
 alter {<new-options>}     Boot [extern] <lambda>.ttp <new-options>
 sys, home, path           Change of shell-[type][path] and [bin-]path
 sh[+][-]                  [De]activate <%s> [= current shell]
 !,  <[shell-]command>     SYS-exec <%s> [<-i>][<-c command>]
 !!, shell, metashell      TOS-exec <%s> in [NULL][META]-env
 ed  {<options> <file>}    TOS-exec %s\<ed.prg> <options> <file>
 TOS  <program-path>       TOS-exec absolute-<program-path>.tos
 tos  <program-name>       TOS-exec %s\<program-name>.tos
 EXEC <path> {<options>}   TOS-exec absolute-<path>.prg with <options>
 exec <name> {<options>}   TOS-exec %s\<name>.prg with <options>
 TTP  <path> {<options>}   TOS-exec absolute-<path>.ttp with <options>
 ttp  <name> {<options>}   TOS-exec %s\<name>.ttp with <options>
 font <font-name>          Load alternate fonts: %s\<font-name>
 cls, black/white          Clear screen, set [white][black] background
 graphics[+][-]            Toggle graphics display mode [on][off]
 sound[+][-], cursor[+][-] [De]activate bell-sound, cursor [on][off]
 pwd, ls, du, date, mem    TOS-mapped shell commands [without args]
 cd [mkdir][rmdir] <path>  TOS: change [make][remove] <path>-dir
 quit, leave, exit         Exit to [immediate][remote] parent process
 help, local               On-line [META] help, local [ATARI-TOS] help

pEDITor COMMANDSq    [See `The UNIX Programmer's Manual', ED(1)]:
                   [Basic regular expression recognition.]

 a(ppend),     c(hange),    d(elete),     E[e](dit), 
 f(ile),       g(lobal),    i(nsert),     j(oin),
 k(ey = mark), m(ove),      l(ist),       p(rint),
 Q[q](uit),    r(ead),      s(ubstitute), u(ndo),
 v(= global),  W[w](rite),  (.)= (= line number).

pSYSTEM/SHELL COMMANDSq [available from the EDITor]:

 ! (= escape to [SH]ell),   T (= system TIME),
 M (= MEMORY available),    D (= DISK usage [of cwd]),
 L (= LIST files [on cwd]), H (= this <HELP-page>),
 V <v_file> (= VIEW <v_file>).

pEDITor VIEW-MODEq [following a `V <v-file>' command]: 

 B[b](= [BACK] = rewind the visited file <v-file>),
 Q[q](= QUIT viewing <v-file> without changing it),
 E[e](= EDIT <v-file>: => W[w]RITE <v-file> to save).

