Batch script loop

[ForumBot]

Batch script loop

[ayi]

for /l is your friend:

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

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

WARNING: Use %% instead of %, if it’s in a fichier batch, like:

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

(which is one of the things I really really hate about windows scripting.)

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 fichier batch:

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 and will be (starting value, increment of value, end condition[inclusive] )