Batch Script – Loop

for /l is your friend:

for /l %x in (1, 1, 100) do echo %x

Starts at 1, steps by one, and finishes at 100.

Use two %s if it's in a batch file:

for /l %%x in (1, 1, 100) do echo %%x

If you have multiple commands for each iteration of the loop, do this:

for /l %x in (1, 1, 100) do (
   echo %x
   copy %x.txt z:\whatever\etc
)

or in a batch file:

for /l %%x in (1, 1, 100) do (
   echo %%x
   copy %%x.txt z:\whatever\etc
)

Key:

• /l denotes that the for command will operate in a numerical fashion, rather than operating on a set of files.
• %x is the loops variable.
• (starting value, increment of value, end condition[inclusive])