1. It could be that a virus checker locks the file. 2. There are Windows software tools that identify which process locks a particular file, e.g. LockHunter (http://lockhunter.com/). Those should help you figure out what's going on.
3. R.utils::downloadFile() tries it's best to download files atomically, i.e. it either gives you a fully downloaded file or not all. In your case, you might still end up with a temporary corrupt file, but at least it will have a filename that is different than the one you ask for. Hope this helps /Henrik On Wed, Sep 28, 2016 at 9:32 PM, Fabien Tarrade <fabien.tarr...@gmail.com> wrote: > Hi there, > > Sometime download.file() failed to download the file and I would like to > remove the correspond file. > The issue is that I am not able to do it and Windows complain that the file > is use by another application. > I try to closeAllConnections(), or unlink() before removing the file but > without sucess. > > Any idea how I should proceed & > > Please find the code below > > # consider warning as an error > options(warn=2) > > # try to download the file > tryCatch({ > download.file(url,path_file,mode="wb",quiet=quiet) > return(0) > },error = function(e){ > if(verbose){ > print(e) > print(e$message) > } > # close file when it failed > if (file.exists(path_file)){ > closeAllConnections() > #unlink(path_file, recursive=TRUE) > #file.create(path_file,overwrite=TRUE,showWarning=TRUE) > #system(paste0('open "', path_file, '"')) > file.remove(path_file,overwrite=TRUE,showWarning=TRUE) > } > return(1) > } > ) > > Thanks a lot > Cheers > Fabien > > -- > Dr Fabien Tarrade > > Quantitative Analyst/Developer - Data Scientist > > Senior data analyst specialised in the modelling, processing and statistical > treatment of data. > PhD in Physics, 10 years of experience as researcher at the forefront of > international scientific research. > Fascinated by finance and data modelling. > > Geneva, Switzerland > > Email : cont...@fabien-tarrade.eu <mailto:cont...@fabien-tarrade.eu> > Phone : www.fabien-tarrade.eu <http://www.fabien-tarrade.eu> > Phone : +33 (0)6 14 78 70 90 > > LinkedIn <http://ch.linkedin.com/in/fabientarrade/> Twitter > <https://twitter.com/fabtar> Google > <https://plus.google.com/+FabienTarradeProfile/posts> Facebook > <https://www.facebook.com/fabien.tarrade.eu> Google <skype:fabtarhiggs?call> > Xing <https://www.xing.com/profile/Fabien_Tarrade> > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.