TOPS-20 Commands Reference Manual
Appendix B Alphabetical list of TOPS-20 commands
This appendix consists of an alphabetical list of TOPS-20 commands and short descriptions of each. The varieties of argument needed to complete each command are shown next, in the order that you give them; parentheses indicate that the argument is optional or can be defaulted. Last comes the effect of the command on memory - whether it clears memory (by loading a program or by other means) or otherwise alters it, or leaves it unaffected. Use this appendix along with the question mark and recognition features to refresh your memory once you have become familiar with the contents of this manual.
Effect
on
Command Function Arguments Memory
ACCESS gets ownership rights dev:<directory>, ---
to a directory password
ADVISE sends commands to user name or ---
another user's job terminal number
APPEND adds files onto end filespecs, ---
of another file (subcommands)
ARCHIVE requests off-line filespecs, ---
storage of files (subcommand)
ASSIGN allocates a device device name ---
for your job
ATTACH engages a job to user name, ---
your terminal (job number)
(password)
BACKSPACE moves a magnetic device name, number ---
tape backward of records or files
BLANK clears your video --- ---
terminal screen
BREAK ends links made by a (user name or ---
TALK command line number)
BUILD creates, modifies, or dev:<directory>, ---
deletes a subdirectory subcommands
CANCEL withdraws output queue, jobname ---
or batch requests
CLOSE closes open files JFN ---
COMPILE translates source filespecs, switches loads
programs into object compiler
programs
CONNECT connects your job dev:<directory>, ---
to a directory password
CONTINUE continues a halted NORMALLY or STAY ---
program
COPY makes copies of filespec,filespec ---
a file (subcommands)
CREATE creates a file (switches), loads
filespec EDIT
CREF translates .CRF (filespec) loads
files into listings CREF
CSAVE stores a copy of (filespec, memory ---
memory in a file locations)
(in compressed format)
DAYTIME tells the date and --- ---
time
DDT starts a debugging (switches) merges
program debugging
program
with
existing
memory (if
necessary)
DEASSIGN gives up a previously device name ---
assigned device
DEBUG debugs a program filespec, switches loads
program
and
debugging
program
DEFINE establishes or withdraws logical name, ---
a logical name search list
DELETE marks files for filespecs, ---
later erasure (subcommands)
DEPOSIT changes contents of memory location, changes
a memory location octal number one
location
DETACH disengages a (argument) ---
job from your
terminal
DIRECTORY gives information (dev:<directory>, ---
about files filespecs),
subcommands
DISABLE deactivates --- ---
capabilities
DISCARD gives up tape copy filespecs ---
of on-line files
DISMOUNT gives up access to alias or setname, ---
structure or tape switches
set
EDIT edits existing (switches), loads
files filespec EDIT
ENABLE activates capabilities --- ---
END-ACCESS terminates ownership dev:<directory> ---
rights to a directory
EOF writes an device name ---
end-of-file mark on
a magnetic tape
ERUN runs a system name of system loads
program in an program (switches) program
ephemeral fork
EXAMINE inspects a memory memory location ---
location
EXECUTE compiles, loads and filespec, switches loads
starts a program compiler
and/or
program
EXPUNGE erases all deleted (dev:<directory>, ---
files from a subcommands)
directory
FDIRECTORY DIRECTORY command (dev:<directory>, ---
with subcommands filespecs),
CRAM,EVERYTHING, subcommands
and NO HEADING
FORK specifies what fork name ---
fork is current or number
FREEZE stops a fork name ---
running fork or number
GET places an executable filespec, loads
program in memory (switches) program
HELP presents a short name of system ---
description of a program
system program
INFORMATION gives information arguments ---
about system and job
parameters
KEEP protects a fork fork name ---
from being or number
reset
LOAD compiles and loads filespec, switches loads
a program compiler
and/or
program
LOGIN begins a job user name, ---
password, account
LOGOUT ends a job --- clears
memory
MERGE merges an executable filespec, adds
program with current (switches) program
memory to
existing
memory
MODIFY changes output or queue, jobname, ---
batch requests switches
MOUNT requests use of alias or setname, ---
structure or tape set switches
PERUSE edits files in (switches), loads
read-only mode filespec editor
PLOT plots files on filespecs, switches ---
plotter
POP returns to superior --- clears
TOPS-20 command memory of
level, ending inferior
inferior TOPS-20 process
command level
PRINT prints files on filespecs, switches ---
line printer
PUNCH punches files on filespecs, switches ---
card punch or paper
tape punch
PUSH begins an inferior --- preserves
TOPS-20 command superior
level memory
R runs a system name of system loads
program program, (switches) program
RECEIVE allows communication argument ---
with your terminal
REENTER starts program in --- ---
memory at the
restart address
REFUSE disallows argument ---
communication with your
terminal
REMARK informs the system --- ---
that you are typing
only comments, not
commands
RENAME changes the filespec, filespec ---
specification of a
file
RESET clears the specified fork name or clears
fork from memory number fork
RETRIEVE restores off-line filespecs ---
files to disk
REWIND rewinds a magnetic device name ---
tape to its load
point
RUN places an executable filespec, loads
program in memory (switches) program
and starts it
SAVE stores a copy of (filespec) ---
memory in a file
SEND sends messages line number ---
to terminals
SET sets various job arguments ---
parameters
SET HOST connects the terminal system name,
to another system switches
SKIP moves a magnetic device name, ---
tape forward number of records
or files
START starts program in (memory location) ---
memory at start
address
SUBMIT submits entries (jobs) filespecs, switches ---
to the batch system
SYSTAT gives information arguments, ---
about system and job (subcommands)
status
TAKE starts processing filespec, ---
of a command file (subcommands)
TALK makes communication user name or ---
links with another terminal number
user
TDIRECTORY DIRECTORY command (dev:<directory>, ---
with subcommands filespecs),
CHRONOLOGICAL WRITE, subcommands
REVERSE, and TIMES
WRITE
TERMINAL sets various argument ---
terminal
characteristics
TRANSLATE gives directory dev:<directory> or ---
names for ppn's and [project-programmer
vice versa number]
TYPE prints files on your filespecs ---
terminal
UNATTACH disengages another job user name, ---
from its terminal (job number)
(password)
UNDELETE restores deleted filespec ---
files
UNKEEP cancels the kept fork name ---
status of a fork or number
UNLOAD unloads a magnetic device name ---
tape and deassigns
the drive
VDIRECTORY DIRECTORY command (dev:<directory>, ---
with subcommands filespecs),
LENGTH, NO HEADING, subcommands
PROTECTION, SIZE,
and TIMES WRITE