RE: SCP and MVS data sets?

-----Original Message-----
From: IBM Mainframe Discussion List
[mailto:IBM-MAIN@xxxxxxxxxxx] On Behalf Of John S. Giltner, Jr.
Sent: Monday, March 19, 2007 8:36 PM
To: IBM-MAIN@xxxxxxxxxxx
Subject: Re: SCP and MVS data sets?


Martin S. wrote:
If i do a
/bin/scp "//'USER9000.MVSDAT'" fraserver.de.dbx.com:/csx

I get a message that USER9000.MVSDAT is not found.


If I do a
cat "//'USER9000.MVSDAT'"
everything works fine.

Is it possible that the open function is different in SCP?

Martin


Some Unix System Services commands support access to MVS
datasets, SSH
(which is what SCP uses) does not. You can use OCOPY to get
the file to
a HFS.

You can also do the following weirdness to use ssh to copy a z/OS legacy
dataset using ssh. Note that this is a UNIX command, so you need to run
a UNIX shell or BPXBATCH or something like that.

cp "//'MVS.DATASET'" /dev/fd1|ssh user@remote 'cat >receiving.file'

This uses "cp", which is documented to support z/OS legacy datasets (cat
is NOT so documented) to /dev/fd1, which is "stdout". It then pipes that
into ssh, which connects to "user@remote". At the remote site, it
invokes "cat" to write to "receiving.file".

I also like Gil's use of "scp" instead of "ssh". I've not tried it, but
I trust him that it works.

I also just learned from Gil that "/dev/fd/?" works on z/OS UNIX. I've
been using "/dev/fd?" which also works. But "/dev/fd?" does not work on
Linux, whereas "/dev/fd/?" does. I think that I'll be changing my
habits. Oh, replace the ? with a number which is the file descriptor.

If you don't want to be prompted for a password or passphrase, then the
z/OS user running this must have an OMVS segment, with a "home"
directory, a .ssh subdirectory, and the appropriate digital cert
(ssh-keygen) with no passphrase.

--
John McKown
Senior Systems Programmer
HealthMarkets
Keeping the Promise of Affordable Coverage
Administrative Services Group
Information Technology

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