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Set Fetch Parameters


Use this menu to set the parameters used to fetch data from a URL.

(A URL is a uniform resource locater, such as http://www.iagp.net or ftp://sqlcore.umn.geo.umn.edu, or file:///C:/dl/odp/index.html).

We are assuming that you have wget installed on your system. (Linux and Mac's have this installed by default. NCLIP provides a Win32 version of wget with the PC distribution.) Wget 1.10 or higher works best. You can learn more about wget at http://www.gnu.org/software/wget/

When your data is downloaded, the files are in a local directory structure that copies the one on the web site. For example, if I download leg199 to my c:\dl\odp directory, the data are under www.ldeo.columbia.edu in that directory.

If you have a local copy of a data set in that directory tree, all links of other pages in the tree will point to that local copy. If you do not have a local copy, the links in all of the pages in that tree will point to the remote copy of the data. In this way, you can download only well logs, but still automatically access the images when needed.

The first line is where you provide a URL. We provide a sample:
http://www.ldeo.columbia.edu/BRG/online2/Leg199/
If you want all of the data for Leg199 (be careful) on your machine, use a type of fetch of URL, and a depth of Recursive.

If you want only a list of the files of leg199 on your machine, press the button, and you will see change to . Then we will only download the files of type html or htm from the system. These files are usually index files, and so will tell you what files are on the system.

If you only want one file, press the button, and it will change to . In this case, your URL should be a complete file name.

Use the button to change the place where your files are downloaded.

If you only want files of a specific type, e.g. *.dat files to get all well logs, enter the desired file extension in the "File Type" box.

For you savvy wget users, you can use the "Additional Arguments" box to add other wget arguments. There is a list of valid wget arguments listed here.