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Multi-Tasking MS-DOS
Beta Test Release 1.00
Command Guide
ARENA.EXE - Prints out arena assignments
arena
The system's memory arena is printed out. The
number listed under the owner field is the PID of
the process which owns the memory.
BBSET.EXE - Set and report on behavior bits
bbset [-o] [ {+|-}bitname ... ] fname ...
BBSET sets or clears behavior bits in an .EXE file
header. Multi-Tasking MS-DOS uses the behavior
bits to determine the level of special
compatibility support needed to run the
application.
BBSET will set (if +bitname) or clear (if -
bitname) the named behavior bit(s) from the
specified files. If the -o switch is specified,
BBSET writes a report on the current setting of
all the defined behavior bits to stdout after
making the requested changes.
For a list of behavior bits that BBSET knows
about, type BBSET without any arguments.
COUNTDOW.EXE - Count down a CPU loop
countdown number
Its argument is a number; it counts the number
down to 0, at about a 1hz rate. It prints out
the countdown. Another CPU loop program like
TEXT, but this one terminates when the count
reaches 0
DETACH.EXE - Detaches a child process
detach command [argument ...]
The command given is run as a background process.
Detach prints out the Command Subgroup ID (CSID)
which may be used as an argument to KILL to
terminate the process.
Multi-Tasking MS-DOS Command Guide - Page: 2
HE_DAEM.EXE - Hard error catcher
detach he_daem
Intercepts hard errors, reports them and requests
user action. This should always be run in the
background for now. Put the above command line in
your AUTOEXEC.BAT file if you're not going to use
the Session Manager (SM).
KILL.EXE - send a signal to a process
kill [-nn] [sig=nn] [disp=mm] pid ...
Sends signal nn with disposition mm to processes
mentioned in pid. Defaults to SIGTERM and process
tree disposition.
POUND.EXE - Exercise disk I/O system
pound [t]count filea fileb
Pound reads sequencially through filea and fileb,
reading 512 bytes at a time alternating between
the files on each read. When the end of file is
read the following read for that file begins at
the beginning of the file. If a count is
specified without the preceeding "t" then pound
reads 512 bytes, count number of times from each
file before the program terminates. If "t"
preceeds the count value then the files are read
for count number of seconds before the program
terminates.
SLEEP.EXE - Sleep for a while
sleep sec[.millisec]
Sleep will execute a sleep system call for the
number of seconds and milliseconds specified.
This might be useful in batch files to pause for
an interval as opposed to waiting for a user
response.
SM.EXE - Session manager
sm
Manages multiple processes running on different
screens. Uses initialization file SM.INI. This
Multi-Tasking MS-DOS Command Guide - Page: 3
program includes the hard error catcher, so don't
run HE_DAEM if you're going to use this. See the
file SM.DOC for more information.
TEXT.EXE - Loop and print text
text argument
CPU loops and prints its argument every 2 CPU
seconds or so
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