Windows batch file lowercase

The above works because the search portion of search and replace is case insensitive. Here is a finished, functioning script that disregards point 3. Improve this answer. James K 3, 3 3 gold badges 18 18 silver badges 28 28 bronze badges. Hopefully this can be improved on by another member, but it should work in theory. Bali C Bali C Yeah, I couldn't work out how to keep the version that dir created, I thought about using a temporary file but couldn't get my head around it : — Bali C.

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What a support nightmare when someone sends a file and a fat finger mistake means they sent "Answers. There's just no good reason for those two names to be considered 'different'. David, for example Java actually requires case-sensitive file names. That can yield a lot of trouble on non-case-sensitive file systems. I know this is old, but I wanted to clarify a misconception here. Show 1 more comment. Active Oldest Votes. Improve this answer. The recursive version didn't work for me -- rename complained about the command being in an invalid format.

Ended up just manually recursing. This is a very nice answer; to the point, no external programs needed, nice and small command, no batch file complicated-ness needed. Can it be modified to change lowercase to uppercase? Show 7 more comments. Gaff Please give me the reason for down vote? I guess the downvote was because the OP wanted a solution that worked without any additional software. And I guess the downvote wasn't explained because some people are prone to deal out revenge downvotes.

The GUI is a little funky but it does the job better than several other renamers that I've seen out there. Feels like an old an un-maintained program : — Nelson. Show 2 more comments. Won't work Powershell doesn't allow renaming something to the same name I can confirm that this does not currently work, it throws this error: Rename-Item : Source and destination path must be different. Add a comment. Works great. Tried saving it as a batch file and popped it in system32 so I could run it anytime with a single command.

Results in this: " D"' was unexpected at this time. Running it as a direct command works fine, just doesn't work when run as a batch file. Not sure as to how to make it work as a batch file, but thought I'd give heads up to the issue. Always learning something new everyday.

This worked for me in Command Line. Synetech Synetech THIS is the right app, after installation in 10 secs.

At first sight? Personally, I prefer using the string substitution feature of Windows' SET command, combined with delayed variable expansion. Besides conversion to upper case, this can be used just as easily to convert to lower case:. The code is not quite as compact as the code that uses the PATH command, but it is much easier to read and maintain. Jiri sent me a clever adaptation of the UpCase and LoCase routines, plus what he calls a Title Case routine, also known as capitalization.