Using the command line download manager

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Generate a key file

You need to generate a key file to authenticate yourself to the server. To do this simply click on this link:

Generate Key File

You will need to login with your SLAC username/password if you have not already done so. Save the downloaded key file as ~/.downloadManager/glastKeyFile. Remember to set the permissions on the file/directory so it can only be read by the user who will run the command line download manager.

Download the

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launcher jar file.

Store it anywhere you like.

Make sure you have a suitable version of Java

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installed

java -version

You need version 1.5 or greater.

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From the directory where you save netx-0.5launcher.jar issue the following command.

java -jar netx-0.5.jar -headless -basedir ~/.downloadManager -jnlp http://glast-ground.slac.stanford.edu/DownloadManager/LineMode.jnlp -arglauncher.jar --folder=/Data/Flight/Level1/LPA -arg --group=FT1 --destination data/FT1

Notes:

The full list of arguments supported is:

 -destination,--d <arg>   Destination folder
 -folder,--f <arg>        Folder to download
 -group,--g <arg>         Group to download
 -help,--h                Display usage information
 -keyFile,--k <arg>       File containing download key
 -nDownloads,--n <arg>    Number of simultaneous downloads
 -q,--quiet               Turn off informational messages
 -runMax <arg>            Maximum run number
 -runMin <arg>            Minimum run number
 -x,--debug               Turn on debug output

Notes:

• We should add more options, to support MET ranges and full data catalog meta-data search
• We need a front-end script to make the command simpler
• We need to document the options
• The format of the downloaded files will change shortly
• The download manager checks if the files to be downloaded already exist. If so they will not be downloaded again. If a newer version exists it will replace the existing version (and the existing version will be renamed *-old-n)