Filed under: Utilities, Windows, Microsoft, Freeware, How-Tos
Automatically delete empty subdirectories with one-line batch file
by Jason Clarke May 5th 2008 at 12:00PM
Deleting empty subdirectories seems like something Windows ought to do automatically, but for some reason that function just isn't included as part of the OS. Luckily, you don't need to download a utility to do it; instead, you can create a single line batch file that will do exactly what you're looking for:
for /f "usebackq" %%d in ("dir /ad/b/s | sort /R") do rd "%%d"
Raymond Chen, the venerable Microsoft coder, explains how this works. Basically, it uses a trick to enumerate the directories in reverse order. Since you can't delete a directory that contains data (including other directories) the only way to automate deleting directories is to start at the very bottom of the tree and work your way up.
I don't know if this is a labor of love or merely the brainchild of four very gifted games designers, but Level Up is a really weird mash-up of gaming elements that you have probably never seen in a Flash game before.
Let's start with the premise itself: Groundhog Day meets Memento. The game experience revolves around 'days': you explore the world and the clock slowly ticks towards the evening. You bounce around picking up gems and talking to the denizens of 'Level Upland'. Eventually you feel tired and head back to ...
Reader Comments (Page 1 of 1)
Jeebus said 1:26PM on 5-05-2008
RD /S works for me.
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hazard said 1:05AM on 5-06-2008
I presume this is for a deltree operation that works on all flavours of Windows cause it's certainly not required for WinXP as Jeebus has pointed out rd /s or rmdir /s do this already ...
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Mark said 11:29AM on 5-06-2008
Uh guys, doing that will delete everything. Files and all. This is just to delete empty subdirectories and leave your files alone.
dsfdsfsdf said 11:26PM on 5-07-2008
"Deleting empty subdirectories seems like something Windows ought to do automatically"
-> Huh? I'm pretty glad that it does not...
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Hans said 6:46AM on 7-01-2008
This looks handy, but how I have another problem. I do scheduled exports from a system and it mostly dumps empty files into a folder. How do I do to delete zero (null) sized files within that directory so that only files that contain data are spared?
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