?					% print this file
ALLOW	  [ TRUE | FALSE ]		% do/don't generate code if errors
BINDIR	  [ directory ]			% set/reset directory for binary files
BINSUF	  [ suffix ]			% set/reset suffix for binary files
CCDBG	  [ | string | RESET ]		% show/set/reset cc debug command
CCOPT	  [ | string | RESET ]		% show/set/reset cc opt command
CE	  [ input { , input } ]		% create new CE
CFILES    [ TRUE | FALSE ]		% do/don't save .c files
CHECK	  input { , input }		% check for semantic errors
CLU	  input { , input }		% produce binary
COMPILE   input { , input }		% produce binary
DIR	  [ directory ]			% set/reset default directory
DUMP	  filename			% dump in-core library to file
ESCAPE					% temporarily exit CLU
EXPUNGE	  [ TRUE | FALSE ]		% do/don't remember non-cluster specs
EXTERNALS [ TRUE | FALSE ]		% do/don't list external references
FORCE	  [ TRUE | FALSE ]		% do/don't generator code for FORCE[t]
FORGET	  module { , module }		% forget DU specs of modules
HELP					% print this file
KILL					% kill CLU
LOCALS	  [ TRUE | FALSE ]		% do/don't generate local var names
MERGE	  input { , input }		% merge libraries with in-core one
NEWLIB					% flush in-core library
OPTIMIZE  [ TIME | SPACE | FALSE ]	% set/clear optimization mode
PARSE	  input { , input }		% check for syntactic errors
QUIT					% kill CLU
SAFE	  [ TRUE | FALSE ]		% do/don't check if idns used in system
SPECS	  input { , input }		% create DU specs
UNMERGE	  input { , input }		% forget DU specs of library modules
XCE	  input { , input }		% add to existing CE
XFILE	  input { , input }		% execute commands in files

input:	  filespec  |  @ filename	% *'s allowed in filespec

Commands and command arguments can be specified with unambiguous prefixes.
Commas may be replaced with spaces or tabs.
Default is TRUE for TRUE/FALSE commands, TIME for OPTIMIZE command.
The jcl line has the form:  [ # cmnd ] args { # cmnd args } [ ^ [ filename ] ]
A command line has the form:    cmnd   args { # cmnd args } [ ^ [ filename ] ]
The default cmnd in the jcl line is CLU.
Errors, etc. go to primary output unless ^ is specified.
Default filename after ^ is clu.junk.
Character case is ignored except in filenames. Do not type {}'s and []'s, just
what's inside them.  Things in {}'s may be repeated zero or more times. Things
in []'s are optional.
Default suffix for SPECS input files is "spc" or "clu".
Default suffix for CE and XCE input files is "equ".
Default suffix for XFILE input files is "xfile".
Default suffix for DUMP, MERGE, and UNMERGE files is "lib".
Default suffix for input files to other commands is "clu".
Default suffix for an @-file is "xload".
An @-file contains a sequence of input specifications, separated by newlines.
An @-file may reference @-files.