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Solve : Random # of lines in a large text file?

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I'm not sure I follow what that code means...

Does that code create a percent of what is entered into %var%?

I assume that anyone using this generator will REALLY only want to use between 10 and 25 streets, I just wanted to put a limit on what gets entered so that a typo wont create an error or generate way too many streets.

I have a Blank Map of our CITY streets but its only on a standard 81/2 x 11 sheet of paper so to use too many streets on it will create too MUCH clutter.

Thx Devcom.

-Step432Quote

Does that code create a percent of what is entered into %var%?

no it makes "15%" of streets in file where you have them all, so you dont have to change code like sidewinder SAYS but using my method is not exact to real 15%

found the problem:
Code: [Select] set /a max=%num%/100*15 change to this:
Code: [Select] set /a max=%num%*15/100then will be exact 15%

Quote
really only want to use between 10 and 25 streets

you mean this ?

Code: [Select]:LOOP
set /p var=Enter how many streets you need:
if %var% lss 10 goto LOOP
if %var% gtr 25 goto LOOP
hope that helps
Thx for all the help, I appreciate it.

Heres my final code to see what I'm doing. if anyone wants to test it just create a "STREETS.txt" file and put some lines in it for the code to call on.

Code: [Select]
TITLE Street Test Generator
@echo off
color f0
cls

ECHO =============================================
ECHO Americus Fire and Emergency Services
ECHO =============================================
ECHO ... ...... ...... ...
ECHO MMM MMMMMM. MMMMMM MMI MM
ECHO M. M. MM MM MM, ...
ECHO M M. MMMMMM MMMMMM. MMMM .
ECHO .MMMMMM. MM MM MO MM
ECHO MM MN M. MM M. MMMMMM. MM .NMMMM MM.
ECHO .. . .. . . . . .
ECHO =============================================
ECHO Street Test Generator 1.0
ECHO =============================================

IF EXIST street_test.txt. (del street_test.txt.)

set idx=0
for /f "tokens=* delims=" %%v in (STREETS.txt) do (
call set /a idx=%%idx%%+1
call set array.%%idx%%=%%v
)



ECHO.
Echo ====================================================
ECHO.

:again
set /p var=HELLO %username% !! Enter how many streets you need (max 40):
IF %var% GTR 40 GOTO again

set cnt=0

ECHO.
ECHO ====================================================
ECHO.


:loop
call set /a cnt=%%cnt%%+1
set /a rnd=%RANDOM% %% %idx% + 1
call echo %%array.%rnd%%%>>street_test.txt
call echo %%array.%rnd%%%
if %cnt% LSS %var% goto loop

ECHO.
ECHO ====================================================
ECHO.

Echo street_test.txt with %var% streets has been created.
ECHO.
ECHO ====================================================

ECHO.
ECHO.

pause


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