Windows bat file loop example

I have explained below with examples as to how to use for loop in different use cases. You can use for command for this use case as below. For command iterates over the list and then opens them in notepad. You have a list of login names whose accounts need to be deleted from the system. To delete all these user accounts in a single step we can run the below command. Active 1 year, 2 months ago. Viewed k times. Improve this question. Ross Ridge Add a comment. Active Oldest Votes. Improve this answer.

Community Bot 1 1 1 silver badge. Mechaflash: possibly, I've never tried. I always have that line at the top of my scripts since I use the other stuff as well. Yeah, it turns out this was a BIG learning experience in the meaning of "enabledelayedexpansion" and what its uses are. Thank you for explaining! Your answer is not related to the question — jeb.

Me too -- this worked perfectly for me, and it's simple and elegant. In and do aren't parameters, but you must use them with this command. If you omit either of these keywords, an error message appears. If command extensions are enabled that is the default , the following additional forms of for are supported:. The syntax is:. Recursive: Walks the directory tree that is rooted at drive : path and executes the for statement in each directory of the tree.

If set is just a single period. Iterating a range of values: Use an iterative variable to set the starting value start and then step through a set range of values until the value exceeds the set ending value end. If start is less than end the command will execute. When the iterative variable exceeds end , the command shell exits the loop. You can also use a negative step to step through a range in decreasing values. For example, 1,1,5 generates the sequence 1 2 3 4 5 and 5,-1,1 generates the sequence 5 4 3 2 1.

Iterating and file parsing: Use file parsing to process command output, strings, and file content. Use iterative variables to define the content or strings that you want to examine, and use the various parsingkeywords options to further modify the parsing.

Use the parsingkeywords token option to specify which tokens should be passed as iterative variables. Every iteration or pass through the loop thereby processes a different file from the defined group which might equally have been any group, e. In the first example, we substitute text: the text string "old" is replaced by the text string "new" if, but only if, the text "old" is present in the file's name.

In the second example, we add text: the text "Prefix " is added to the start of the file name.