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Q: Explain DD PATH statement?
Answer:
PATH specifies Unix/USS file. PATH='/u/user/file'. Used instead of DSN. PATHDISP for disposition. PATHOPTS for options. PATHMODE for permissions. Integrates USS files into batch JCL.
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Q: What is PATHDISP parameter?
Answer:
PATHDISP=(normal,abnormal) for USS files. Options: KEEP, DELETE. PATHDISP=(KEEP,DELETE). Used with PATH parameter. Similar to DISP for MVS datasets. Controls USS file retention.
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Q: How does DISP parameter work?
Answer:
DISP=(status,normal-end,abnormal-end). Status: NEW/OLD/SHR/MOD. Normal-end: DELETE/KEEP/PASS/CATLG/UNCATLG. Abnormal-end: same options. Example: DISP=(NEW,CATLG,DELETE) creates new, catalogs if OK, deletes if abend. MOD appends or creates if not exists.