getting subfolders in a directory on FTP (MODIS)
Good morning, I know this is not exactly a question for R SIG GEO, but as it may interest beginners like me who work with MODIS data... (and I'm hoping I'm not the only beginner on the list !) I adapted the script of Tomislav Hengl (again thank you for your wiki page! http://spatial-analyst.net/wiki/index.php?title=Main_Page) to download snow cover MODIS data form NSIDC (http://nsidc.org/) from their ftp site (the data I'm interested in lie in ftp://n4ftl01u.ecs.nasa.gov/SAN/MOST/MOD10CM.005/ <-- monthly snow cover). MODIS data are stored in subfolders named by their dates and I already had the same troubles with other MODIS data. How do I get the list of subfolders name directly from R and thus the dates of satellite pictures ? For the moment, what I've been doing is going on the ftp via my browser, copy and paste the whole page in a .txt file and manage that with excel to get the dates... But I don't really like doing it that way. So if anyone could guide me to a R function that would do that (or to the different functions if it's not straigthforward)... Best regards Alex Alexandre Villers PhD. Student Team Biodiversity CEBC CNRS 79360 Beauvoir sur Niort __________ Information from ESET Mail Security, version of virus signature database 4240 (20090713) __________ The message was checked by ESET Mail Security. http://www.eset.com