Keyboard input during loop in batch file?

Question

I am writing a batch file that continually pings a website in a simple :a goto a loop until a key is pressed . Is there a command that would accept simple 1 key input during the loop?

Answer 1

SET /P input=Please type a value:



To test the value of input use

%input%



This will however stop the program on every loop and may not be what you want.



Have fun.

Answer 2

Windows Batch For Loop

Answer 3

This is what you are looking for. It will loop until the Q button is pressed. Where it says "choice /c qc /t 1 /d c >nul" is where you would change the q to be any other button. the "/t 1" means it will wait one second for a user to respond, and then ping again. The only reason the /d c is in there is because it must default to a value other than q. I put "qc" to mean q -quit, c -continue.



echo off

setlocal enabledelayedexpansion



for /l %%a in () do (

cls

ping -n 1 www.go.com

choice /c qc /t 1 /d c >nul

if "!errorlevel!"=="1" exit

)





If you really want to use the goto, than this will do the exact same thing:



echo off

:loop

cls

ping -n 1 www.go.com

choice /c qc /t 1 /d c >nul

if "%errorlevel%"=="1" exit

goto loop



the "for" loop I put in there is an infinite loop - like i said...does the same thing.

Answer 4

Nope. Not in standard Windows (CMD.EXE). You could:



1. Get one of the enhanced CMD.EXE replacement shells.

2. Install Cygwin and use a bash shell script instead.

3. Learn Windows Script Host (uses a VB-like macro language, by default).

4. Write a small C/C++ program to test for keyboard input and return the result as an ERRORLEVEL.



Any of those might work. I'd choose #4, but I'm a dinosaur. Something like the following will work with MS compilers, or with the MinGW port of GNU C/C++:



#include /* Nonstandard header -- windows/dos only */

int main (int argc, char**argv)

{

if (!kbhit()) return 0;

int key = getch();

if (key != (key & 0xFF)) key = 0xFF;

/*

... Can insert code here to test for an argument and return 1-based

... index of (key) in the argument. This could simplify ERRORLEVEL testing.

... For now, just return ASCII code as ERRORLEVEL.

*/

return key;

}

Answer 5

A loop is well... A loop and cant be stoped in the manner you are talking about.



ping XXXXXX.com -t



will endlessly ping the site until you press CTRL+C