Setting variable value to for loop

Question

Good morning,

I'm currently trying to read multiple directories, instead of using the given statement several times I want to iterate through the folders in a for loop.

Key data:

current statement:

robocopy C:\Users\test\v2.5.0.0 C:\Users\enddir *.sql

now i saw the following code example for a batch for loop

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

The directories look somewhat like this
v2.5.0.0
v2.5.0.1
v2.5.0.3
v2.6.8.2
v2.7.4.3

My idea is, to have 4 capsuled for loops to iterate through all directories so I'm able to use variables example: vW.X.Y.Z instead of v2.5.0.0

So, the point of my question is: how can i set and use a variable in a for loop so that it has the value of the current iteration? I'm used to java if that helps in explaining.

Thanks in advance for your help. :)

if there is some information missing, I'm happy to give more!

edit: code i think will work

for /l %%w in (1, 1, 100) do (
   for /l %%x in (1, 1, 100) do (
    for /l %%y in (1, 1, 100) do (
        for /l %%z in (1, 1, 100) do (
            robocopy C:\Users\test\v%%w.%%x.%%y.%%z C:\Users\enddir *.sql
            )
        )
    )
)

Do you really want counters? Can you not just loop over the folders with `for /D` e.g. `for /D %f in (c:\users\test\*) do @echo %f` ? also http://stackoverflow.com/questions/817280/how-does-for-work-in-cmd-batch-file and related links. — TessellatingHeckler, Feb 10 '17 at 06:51
The value of the current iteration is stored in the parameter variable. So you could be using `echo v%%W.%%X.%%Y.%%Z` to achieve your result. If that is not what you meant, I suggest you show the skeleton of your script for better understanding :) — geisterfurz007, Feb 10 '17 at 06:52
@TessellatingHeckler sadly not because there are different directories too and i only want say directory 5.2 to 7.4 — Kyo Akashi, Feb 10 '17 at 06:53
@geisterfurz007 edited to show my code, do you think this will work? — Kyo Akashi, Feb 10 '17 at 06:59
I am certain it should. I will add something to my answer really quick — geisterfurz007, Feb 10 '17 at 07:04

geisterfurz007 · Accepted Answer · 2017-02-10T07:07:08.440

1

You can easily use a for-loop in batch with the /l switch to achieve a couting loop as shown in your example. These can be nested as well like this:

@echo off
for /l %%w in (1, 1, 10) do (
  for /l %%x in (1, 1, 10) do (
    for /l %%y in (1, 1, 10) do (
      for /l %%z in (1, 1, 10) do (
        echo currently at v%%w.%%x.%%y.%%z
      )
    )
  )
)

Now that above has been shown almost exactly in your question I suggest something to add:

The line if exist C:\Users\test\v%%w.%%x.%%y.%%z ( in front and a closing parenthesis in the line after should be added around your robocopy line, to make sure that the directory you want to copy actually exists.

edited Feb 10 '17 at 07:07

answered Feb 10 '17 at 07:02

geisterfurz007

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So it's just like i thought, thank you very much! Is the "@echo off" important? (and nice username ;P) – Kyo Akashi Feb 10 '17 at 07:05
1

@echo off prevents possibly annoying command-line output that is not really neccessary, it is not important, but I usually include it. And thanks ;) – geisterfurz007 Feb 10 '17 at 07:08

Setting variable value to for loop

1 Answers1