Re: Import files on accessible URL and save in
- To: mathgroup at smc.vnet.net
- Subject: [mg122733] Re: Import files on accessible URL and save in
- From: DrMajorBob <btreat1 at austin.rr.com>
- Date: Wed, 9 Nov 2011 06:23:06 -0500 (EST)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
- References: <201111050945.EAA10302@smc.vnet.net>
- Reply-to: drmajorbob at yahoo.com
This fails, and I wonder why? DeleteDirectory["/private/var/folders/kY", DeleteContents -> True] $Failed DeleteDirectory::dirne: Directory /private/var/folders/kY not empty. >> Bobby On Tue, 08 Nov 2011 16:08:46 -0600, DrMajorBob <btreat1 at austin.rr.com> wrote: > <<Utilities`URLTools` > FetchURL["http://www.wolfram.com";] > "/private/var/folders/kY/kYL-hxebGaefEKwlddWc3++++TM/-Tmp-/Temp7483389857745393361___www.wolfram.com" > > Good job! Now, then... where is that file, and how do I remove it? > > Bobby > > On Tue, 08 Nov 2011 06:14:50 -0600, Todd Gayley <tgayley at wolfram.com> > wrote: > >> At 03:45 AM 11/5/2011, Gy Peng wrote: >>> Dear Mathematica friends, >>> >>> I want to Import some files stored on internet by: >>> >>> Import["http://url";, ...] >>> >>> This allow me to see the file in the notebook of mathematica. However, >>> what >>> I want to do is to download and save the files in local machine. And >>> since >>> I have may be hundreds or thousands files need to be download and >>> save. Is >>> there any why in Mathematica to do it in a most optimized and fast way? >>> >>> And can read the file names in a single string in Mathematica like: >>> >>> { file1, file2, file3, file4, ...} >>> >>> How could I make a loop in Mathematica to download and save all of >>> them in a same directory in local machine by Mathematica? >>> >>> I would thank you for all your kind reply and help!!!! >> >> >> The FetchURL function, which is used internally by Import, will do >> what you want: >> >> In[10]:= << Utilities`URLTools` >> >> In[11]:= FetchURL["http://www.wolfram.com";] >> >> Out[11]= >> "C:\\Users\\tgayley\\AppData\\Local\\Temp\\Temp65400___www.wolfram.com" >> >> If you want to choose a specific location and filename for the >> downloaded file, you pass it as the second argument: >> >> In[12]:= FetchURL["http://www.wolfram.com";, "c:\\foo.txt"] >> >> Out[12]= "c:\\foo.txt" >> >> If you want a program that downloads a list of URLs to a specific >> directory, this will do the trick. >> >> listOfURLs = {"http://www.wolfram.com";, "http://www.apple.com";, >> "http://www.microsoft.com"}; >> downloadDir = "c:\\foo"; (* I assume it exists *) >> n = 1; >> {#, FetchURL[#, ToFileName[downloadDir, "file" <> >> ToString[n++]]]} & /@ listOfURLs >> >> This returns a list of {url, filename} pairs so you can match up each >> URL with the corresponding file. You could also create filenames >> based on the URL so that it was immediately obvious which file was >> the product of which URL. >> >> >> Todd Gayley >> Wolfram Research >> >> > > -- DrMajorBob at yahoo.com
- References:
- Import files on accessible URL and save in local machine.
- From: Gy Peng <hitphyopt@gmail.com>
- Import files on accessible URL and save in local machine.