Windows shell nested for loops

I wanted to run a program several times with two increasing input parameters. For this purpose I had to write a small shell script containing two nested for loops. For some reason, that I didn't understood the script stops its execution before printing all values.

for /l %%r in (1 2 3 4 5 6 7 8 9 10) do (
    for /l %%c in (1 2 3 4 5 6 7 8 9 10) do (
        rem Run my program here!
        echo %%r %%c 
    )
)

The output is

I'm really lost, as I'm no expert in windows shell programming.

Solution

You have added the /l flag, which has the following properties:

for /l %%X in (start, step, end) do command

So in your case:

Start: 1
Step : 2
End  : 3

So thats why you get:

(1, 1), (1,3), (3,1), (3,3)

If you remove the /l you should get the results as expected.

echo off
for  %%r in (1 2 3 4 5 6 7 8 9 10) do (
    for  %%c in (1 2 3 4 5 6 7 8 9 10) do (
        echo %%r %%c 
    )
)

Which returns (1,1) to (10,10).

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