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CATALOG
Directory listing. DOS 3.x's directory listing fits in 40 columns
wide, while ProDOS's CATALOG is 80 columns wide. See also CAT
CHAIN filename
DOS 3.x integer basic: loads another program, starts executing it with
all the variables unchanged from the first. Not really usable with DOS
3.x and Applesoft Basic
ProDOS extended syntax: 'CHAIN filename[,@line]'-- works with
Applesoft BASIC programs properly, allows you to specify a starting
line number for program execution
CLOSE [filename]
Closes any OPENed text files, flushes any pending changes to disk. If
a filename is specified, that file is closed; if no filename is
specified, any and all open files are closed.
CREATE filename[,Ttype]
[ProDOS only] Creates a file on disk with the specified name and type.
If the type is omitted, a subdirectory (type='DIR')is created.
DELETE filename
Attempts to delete a file. Files cannot be deleted if the disk is
write protected, the file is LOCKed, or an error occurs.
EXEC filename
Takes a text file on disk, and redirects input from it as if all lines
had been typed at the command prompt. It continues until all of the
file is parsed this way, not stopping for errors if this is not a
valid set of commands.
ProDOS extended syntax: 'EXEC filename[,Fnum][,Rnum]'-- allows you to
specify the number of the first line in the file executed
FLUSH
[ProDOS only] Writes any pending (i.e. cached) disk writes to their
physical media.
FP
[DOS 3.x only] Switches to 'Floating Point' (i.e. Applesoft BASIC), if
that is available, also dumps any Basic programs out of memory, even
if Applesoft was active to start with.
FRE
[ProDOS only] Faster string garbage collection than that provided by
Applesoft Basic in ROM. Useful mainly from within Basic programs.
IN#slotnum
Redirects input to come from the specified slot, or use slot 0 for the
keyboard. This parallels the Basic command of the same name, since
both DOS 3.x and ProDOS hook themselves into the i/o vectors, and need
to stay attached, even with input coming from elsewhere. Like all OS
commands, within an Applesoft Basic program, this command should be
preceeded by the control-D character.
INIT filename
[DOS 3.x only] Formats a disk, and saves the currently loaded Basic
program in memory as the program run on boot of that disk with the
specified name.
INT
[DOS 3.x only] Switches to Integer Basic, if available, dumps any
Basic programs from memory.