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How to find which OS we are using
IBM Mainframe Forums -> TSO/ISPF
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Aravind Kumar. S

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Joined: 28 Apr 2005
Posts: 26
PostPosted: Wed Jun 29, 2005 7:28 pm
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Hi,

How to find which OS we are using like OS/390 and z/OS.

Thanks,
Aravind. S
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superk

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Joined: 26 Apr 2004
Posts: 4652
Location: Raleigh, NC, USA
PostPosted: Wed Jun 29, 2005 7:35 pm
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If you go into the ISPF Dialog Test (Usually Option 7), and look at the ISPF variables (Option 3), you will find these system variables:

ZENVIR - ISPF 5.2MVS TSO
ZISPFOS - ISPF FOR z/OS 01.02.00
ZOS390RL - z/OS 01.04.00
ZPDFREL - PDF 5.2

amongst others.
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