Bill:
There was a product from IBM called PCF and it would let you string
out tso commands with a ";" between each command and you could do
what you are talking about I just remembered it a 445A . ex: alloc
(systut1)da(in.contl) shr;alloc (sysut2) da(out.data) new sp(1 1)
trk;alloc fi(sysin) dummy;alloc fi(sysprint) da(*);call 'sys1.linklib
(iebgener)'
Is this what you are talking about?
Ed
It did a lot of things for a small package to bad it was discontinued.
Ed
On Feb 5, 2016, at 3:11 AM, Bill Woodger wrote:
On Thursday, 4 February 2016 22:08:31 UTC, Paul Gilmartin wrote:
No, they are not; not even as RAM disk files. A pipe communicates
directly
between processes (like "tasks"). A DOS partisan once explained his
misunderstanding of pipes to me that way:
CAT reads /etc/passwd and writes to temporary file TEMP1.
When CAT terminates, GREP reads TEMP1 and writes TEMP2
When GREP terminates, AWK reads TEMP2 and writes to stdout.
Paul,
MS-DOS/PC-DOS didn't have true pipes, and the "piping" provided was
exactly as your DOS partisan described (writing to a temporary
dataset, first process completes before second starts, reading the
temporary file, etc). Command using piping "looked like" it may
look in a Unix, but didn't operate the Unix way.
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