DosTips.com

Addendum: Of course we could call setlocal/endlocal conditionally, depending on whether delayed expansion is already enabled. I changed variable names slightly to mitigate the risk of name clashes. :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: :initStrLen :: Comput...

I don't feel like continuing to try to squeeze out every last hundredth of a second 🤯 That's it for now: :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: :initStrLen :: Computes the number of bytes in a string. :: %strLen% str len :: str - [ByRef In] Name of the varia...

It's really unreadable, and the variable names are, at best, ugly. Agreed. At least I tried to have it consistently ugly :lol: However, it's tricky to get reliable time measurements on a modern system, where the CPU frequency fluctuates constantly. Yeah. To mitigate it I run the tests in realtime p...

Some more fiddling 😅 Francesco's approach was not too far away. So I made it a macro and fit for 8191-character strings. It turns out that it works well for very long strings. So I took the part for strings >255 characters and mixed it with the dipstick for <= 255-character strings. Surprisingly the...

You mean someting like this? Steffen

It's been too hot to do anything outdoors yesterday. So I came back to this old topic because I remembered Antonio came up with something new last year. I made a few performance comparisons. I turns out that this technique is unfortunately slower than the latest that sowgtsoi posted. Francesco's ada...

You can cast the boolean values in VBS already (using the cint function). This way FALSE becomes 0 and TRUE becomes -1. This said, you should really make the vbs scan the whole file at once. Calling cscript for every line will be horribly slow. Or use JREPL.bat or any other tool with better regex su...

The strategy is simple. 1) If a dot is found in %Suffix%, remove everything that comes before including the dot itself. So "*.xls", ".xls" and "xls" all become "xls" in the first SET statement. (For more information run SET /? and read about environment variable substitution.) 2) Because Get-ChildIt...

Screenshot 2025-06-30 224917.png Screenshot 2025-06-30 225044.png As you can see, SET /P just assignes whatever the user enters. It cannot do anything else. I f you insert these two lines after your SET /P set "Suffix=%Suffix:*.=%" set "Suffix=*.%Suffix%" it doesn't matter if the user omits the ast...

I doubt that this is a cmd issue. It's just the way how the -Filter parameter of the PowerShell Get-ChildItem cmdlet works. It needs the asterisk as a wildcard for the file name. So, what are you trying to do? Manually prepend the asterisk whenever the user didn't enter it?

Steffen

Can't repro. Steffen

Your uncommon 4-digit grouping works incorrectly. It repeats the last digit of the previous group as first digit in the next group. *.ps1 $NUMBER_A = [System.Decimal]1000000000000000000 $NUMBER_B = [System.Decimal]200000000000000000 $Result_in_bytes = $NUMBER_A - $NUMBER_B $KB = $Result_in_bytes / 1...

It's not quite clear to me what you're trying to do. However, you could try something like that: @echo off for /d /r "C:\Users\user\somewhere" %%p in ("*.orph") do ECHO rmdir "%%p" /s /q PAUSE Update the path after the /r option accordingly and run it. The script doesn't do any harm yet, it only dis...

Forty years ago, my father used to say, "You young people are getting dumber and dumber. I know the multiplication tables by heart. You even enter 5x5 into your pocket calculator." My father was totally right. Sometimes I can't recall parts of the multiplication tables. Why? Because I don't frequent...

Thanks for the short notice. I've updated the topic to let the younger audience know that this is a feature that dates back to the old days, before 64-bit machines became common. The edit.com editor was a 16-bit tool that (if I recall correctly) was still shipped with the 32-bit version of Windows 7...