How to create an array from txt file within a batch file?

Question

I have a txt file with below data

aaaa 1000 2000
bbb  3000 4000
cccc 5000 
ffffd  6000 7000 8000 

The numbers of rows in this file are not fi

Answer 1

try this:

@echo off
for /F "tokens=1,2*" %%x in  (myFile.txt) do echo %%x

the double % is required for use in a batch file, but you can test it on the cmd line with single %s.

in a nutshell, the for will iterate over myFile.txt break each line into two tokens using the default delimiter (space).

Answer 2

To create the array:

setlocal EnableDelayedExpansion

set i=0
for /F %%a in (theFile.txt) do (
   set /A i+=1
   set array[!i!]=%%a
)
set n=%i%

To print array elements:

for /L %%i in (1,1,%n%) do echo !array[%%i]!

If you want to pass the array name and lenght as subroutine parameters, then use this way:

call theSub array %n%

:theSub arrayName arrayLen
for /L %%i in (1,1,%2) do echo !%1[%%i]!
exit /B

Answer 3

try this and call it from anywhere

@echo off

for /f "usebackq" %%a in ('%2') do set d=%%~a
for /f "usebackq tokens=* delims=%d%" %%G in ('%3')  do set %1=%%~G

set /a i=-1


for %%h in (!%1!) do (
set /a i+=1
set %1[!i!]=%%h
)