On Thu, Aug 16, 2018 at 9:20 AM, Charles Mills <charl...@mcn.org> wrote:

> A short answer is check out the SSI (Subsystem Interface) manual. Not for
> the feint-hearted.
>

You don't need to use the SSI to read a spool data set, although you do
need a way to get the JES SSID and jobid (like from the current JSAB).

It is not too complicated: you just allocate it using SVC99 (and some
special purpose keys) and open the DD with either a DCB or ACB.
See Chapter 2 in "z/OS JES Application Programming" - JES Spool Data Set
Browse

Kirk Wolf
Dovetailed Technologies
http://dovetail.com

PS> You can use our free Co:Z Utilities in batch to read any spool file and
pass the data to your program.
For example:

//SHELL EXEC PGM=COZBATCH
//STDIN     DD *    # Run z/OS UNIX login shell

# get the 8 character jobid of the current job
jobid=$(echo $JES_SYS_CORR_CURRJOB | cut -c1-8)

fromdsn -jes.$jobid.jesjclin  |
    awk myreport.awk      # or your program that reads from /dev/stdin
//

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