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Simtel MSDOS 1992 December
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ASK_BAT.DOC
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1989-02-17
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5KB
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104 lines
program: ask_bat
Copyright 1989 Floyd D. Pretz Sr.
5834 Spaulding St.
Omaha, NE 68104
Distribution of this program for non-commercial purposes
is permitted. Author assumes no liability for losses due to
malfunction of this program.
Description: The ask_bat program was designed to allow
for timed response to (Y/N) type prompts
in .BAT files - esp the Autoexec.bat file.
The program was written to satisfy a need
to recover from a system reboot of a BBS
(Bulletin Board System) following the loss
of modem carrier, and still allow the system
operator (if present) to answer typical
configuration 'boot' questions. Using ask_bat
with timing options, the system will not wait
indefinitely for console response, but will assume
a default response after a specified period of
time. This also allows you the opportunity to
go fill your coffee cup during the boot process
and not wait around to answer batch prompts.
Use: ask_bat [ "string" errlev ... ] [ /T:nnn ] [ /H ] [ /F ] [ /P "prompt" ]
where: 'string' is an optional keyboard (console)
response to which the program will exit with
an ERRORLEVEL set to errlev. You can use as
many of the 'string'-errlev sets as you wish
(DOS command line can not exceed 128 characters).
The absence of any such pairs will function
as 'Press any key to continue' with the
errorlevel set to 0. 'string' is not case
sensitive (i.e. 'Yes', 'YES' & 'yEs' are
treated identically).
/T:nnn is an option to time keyboard activity
and exit ask_bat after nnn seconds. If the
/T parameter is not specified or nnn=0 then
keyboard activity is not timed and ask_bat will
wait indefinitely for console activity. In the
case of a time out (user did not respond within
nnn seconds) the default is assumed to be the
first 'string'-errlev parameter (if any).
The default is also assumed if the console
response is null (Enter key only).
/H is an option to enable a HOT KEY feature
which attempts to match a single keystroke
to one of the 'string' parameters and exit
accordingly.
/F is an option to force the user to key in
one of the 'strings' in order to exit the program.
the program will 'beep' if an incorrect entry
is detected.
/P prompt is an option to display a string on the
screen without forcing a <RETURN>.
Invocation without any parameters will function
similar to the DOS PAUSE statement.
examples: ask_bat yes 1 no 2 maybe 3 /T:15 /H
will exit with errorlevel=1 if the
character 'Y' or 'y' is pressed or
if 15 seconds elapses or only the
<RETURN> key is pressed. Also exits with
errorlevel=2 if 'N' or 'n' is pressed
and exits with errorlevel=3 if 'M' or
'm' is pressed.
ask_bat /H
Functions similar to the PAUSE command.
ask_bat tom 10 dick 20 /F
Will exit with errorlevel=10 if 'TOM',
'tom', 'Tom', etc is keyed in, or exit
with errorlevel=20 if 'Dick', etc is keyed
in. Because of the '/F' parameter one
of these two responses must be keyed in
in order for ask_bat to exit.
ask_bat yes 3 no 2 /H /T:15 /P "Continue --> "
Will display the prompt string and then
wait up to 15 seconds for a hot key.
ask_bat ? > readme.txt
This will create the readme.txt file
which you can later print. Or ...
ask_bat ? | more
Which will force the screen to pause
while you read the help text.