In:
https://www.ibm.com/support/knowledgecenter/SSLTBW_2.3.0/com.ibm.zos.v2r3.ikja300/dup0037.htm
I see the verbiage:
When you use EXECIO, you must ensure that you use quotation marks
around any operands, such as DISKW, STEM, FINIS, or LIFO. Using
quotation marks prevents the possibility of the operands being substituted
as variables. For example, if you assign the variable stem to a value in
the exec and then issue EXECIO with the STEM option, if STEM is not
enclosed in quotation marks, it is substituted with its assigned value.
Sheesh! A similar caution might be included for any command in the Ref.,
but it doesn't belong.
"must ensure"? Well, not always.
I infer the etiology: A troublesome user once coded:
STEM=SKIP /* perhaps */
EXECIO ...
... got astonishing results; went to SR; got fully proper "REJ; RTFM";
vindictively submitted RCF. A feckless tech writer acceded and added
the paragraph.
I strongly suspect the matter is covered properly earlier (citation needed)
in the Ref., which shouldn't be cluttered with such errant rubbish.
(I was reading that Ref. to see whether EXECIO assembles segments
of V[B]S records. Didn't find it.)
-- gil
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