Question

How can I execute the command below in a batch script?

for /L %i in (1,0,2) do (for /f "delims=^" %j in (commands.txt) do cmd.exe /c %j >> output.txt & del commands.txt) & ping -n 2 127.0.0.1

It returns: j not expected.

Answer 1

In a batch file you have to double the % sign for for variables:

for /l %%i ...

and likewise for %j too.

This is also detailed in the documentation help for:

To use the FOR command in a batch program, specify %%variable instead
of %variable.

almost right at the start.