How to Get a File from SAM
                      
         This is an example of how to get Run 119216 off of SAM.


 1) I think you have to be a registered SAM user. These instructions
    don't cover that procedure, yet.

    a) GOTO http://d0db.fnal.gov/sam_project_editor/DatasetEditor.html
       Fill in some fields:
       i) Definition Name: 119216   ! This is the name of your new SAM project
                                    ! Use no spaces.
      ii) Work Group: dzero         ! You might use any of a bunch of these
                                    ! I am using this for now.
     iii) Username: "your_username" ! Well, you.
      iv) Decription:               ! type something descriptive 
    b) Make a query to see if the run exists  
       Fill in some fields under "Operator Dimension":
       i) highlight Run_Number      ! If you want to search run number fields
      ii) Constraint: 119216        ! To find run numbers with field 119216
     iii) hit: Translate Constraints button
                                    ! Look in field below to see if it finds 
                                    ! your run.
    c) Define the SAM Project
       i) hit: Save button.


 2) From D0mino:                    ! Or whatever
    a) cp /www-d0/room3/WWW/docs/Run2Physics/wz/docs/howto/get_file.py .
                                    ! You only have to do this once eevr.
    b) edit get_file.py  
       i) Change the project_definition to the one above
      ii) Change the field "/prj_root/808/mtst_1/group_datafiles/" to 
          the directory in which you want your file to land.
    c) setup sam
    d) sam run project get_file.py  ! That's all folks.


 This is file 
   /www-d0/room3/WWW/docs/Run2Physics/docs/howto/get_file_from_sam.txt.

 Tom Diehl 4/25/01.
 Special thanks to Wyatt Merritt for help.