Variable in for loop in a batch file

Question

Here is my batch file :

    @echo off

    cd "D:/myFiles"

    for /r %%filename in (*) do (

    set f=%%filename

    echo %f%

    )

    pause

What I m expecting is,it will list all the files in myFiles directory.

But what I am getting is 'Echo is Off' for the same number of times as the number of files in directory 'myFiles'.

With

    echo %%filename

I can list filename but I have to do some more operation on filename and so to have to store it in a variable like as currently its stored in variable f.

Any help will be appreciated.

Search for delayed expansion as this is a question that is asked regularly. — foxidrive
– foxidrive, Commented Sep 17, 2014 at 11:57

Stephen Connolly · Accepted Answer · 2014-09-17 12:00:23Z

1

You need setlocal enabledelayedexpansion to allow the re-evaluation of the variable you set inside the loop. variable expansion needs the !var! usage, rather than %var%. e.g.

setlocal enabledelayedexpansion
@echo off

for /r   %%f in (*) do (
    set n=%%f
    echo !n!
)

answered Sep 17, 2014 at 12:00

Stephen Connolly

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2 Comments

user3189612 Over a year ago

But if I want to manipulate the variable n,then how it can be accomplished ?

Magoo Over a year ago

Quite easily - but first you need to send everyone a crystal ball so that we can read your mind. Tell us how you want to manipulate the name, and we may be able to help.

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