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Article #4184Re: How does del *.* work?
From: mr. yawei
Date: Tue, 08 Jan 1991 19:12
Date: Tue, 08 Jan 1991 19:12
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1256 bytes
In article <1991Jan8.123410.1564@en.ecn.purdue.edu> lroberts@en.ecn.purdue.edu (Larry S Roberts) writes: >I have written a program that uses the findfirst, findnext, and remove library >functions to delete files from a directory, however, I have noticed that the >dos command "del *.*" works almost instantly when compared to my program. My >program has to access every file and it seems like the dos command only makes >one disk access. Also the remove function will not take wild cards, so this is >not an option. > >How does del *.* work, and how can I incorporate this in my software? Thanks. I think 'del *.*' works via DOS function 13h (or 0x13, if you preferred), the 'delete with FCB' function, with the filename field set to '????????.???'. yawei
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arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!cica!bronze!yaweiReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!cica!bronze!yawei From: yawei@bronze.ucs.indiana.edu (mr. yawei) Newsgroups: comp.os.msdos.programmer Subject: Re: How does del *.* work? Keywords: del *.* Message-ID: <1991Jan8.191227.14028@bronze.ucs.indiana.edu> Date: 8 Jan 91 19:12:27 GMT References: <1991Jan8.123410.1564@en.ecn.purdue.edu> Organization: Indiana University, Bloomington Lines: 15