NOTE: Do not purge any batches until the back-up tape has been prepared. 
                     
                     
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                              1.  
                                 Select Mode “F” and key the Jobname “SUPER,” a comma (,) and the batch identifier “PUR157.” Then depress the Skip key twice. 
 
 
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                              2.  
                                 Key the batch numbers to be purged into the $JOB 157 command. 
 
 
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                              3.  
                                 Record back to record number “1.” 
 
 
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                              4.  
                                 To execute the purge command string: Select Mode “T,” enter the password and then option “M.”