Implement multiple For loop in batch

Question

I am trying to implement multiple for loop in batch like:

for x=1:10 
for y=x+1:10
//my code
end
end

My code is:

@echo off
for /l %%x in (1,1,10) do (
 for /l %%y in (%%y+1,1,10) do (
  //my code
 )
)

However, it doesn't work. Can anyone help me? Thanks.

@Dale - will not work , in batch you cannot do math in for definition. — npocmaka
– npocmaka, Commented Apr 17, 2014 at 6:33

foxidrive · Accepted Answer · 2014-04-17 16:07:37Z

2

I'm reposting a solution but in a simpler script.

@echo off
setlocal enableDelayedExpansion
for /l %%x in (1,1,10) do (
 set /a inner=%%x+1
    for /l %%y in (!inner!,1,10) do ( 
     echo %%x, %%y
    )
)
endlocal
pause

answered Apr 17, 2014 at 16:07

foxidrive

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Comments

SachaDee · Accepted Answer · 2014-04-17 13:35:05Z

0

@echo off
for /l %%x in (1,1,10) do (
 echo #LOOP [1] ITERATION [%%x]
 for /l %%y in (1,1,10) do (
 echo  ##LOOP [2] ITERATION [%%y]
 )
echo.
)

answered Apr 17, 2014 at 13:35

SachaDee

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1 Comment

npocmaka Over a year ago

As far as I understand the question the OP want the inner loop to start from %%x+1 ...

npocmaka · Accepted Answer · 2014-04-17 18:56:00Z

0

@echo off
setlocal enableDelayedExpansion
for /l %%x in (1;,;1step;,;10#=101) do (
 set /a inner=%%x+1

 @@echo ###%%x is from outer loop###

 for /l %%y in (,,,!inner!==1@==10times,9) do ( 

  @@echo -----%%y is from inner loop

 )
)
endlocal

Simplified

@echo off
setlocal enableDelayedExpansion
for /l %%x in (1;1;10) do (
 set /a inner=%%x+1

 echo - %%x is produced from outer loop

 for /l %%y in (!inner!;1;10) do ( 

 echo --- %%y is produced from inner loop

 )
)

edited Apr 17, 2014 at 18:56

answered Apr 17, 2014 at 6:22

npocmaka

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2 Comments

foxidrive Over a year ago

No offense meant, but is there a reason you wrote it like that? That is incredibly difficult to read, and a newbie will have no hope to understand the points you have made.

npocmaka Over a year ago

@foxidrive - you're right - I should keep it more simple.Sometimes I tend to show a strange sense of humor...

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