We recently upgraded to 1.13. Today, I ran afoul of:
From:
z/OS UNIX System Services
Command Reference
Document Number SA22-7802-14
http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/BPXZA5C0/SHCMDDES.FILE.6
SHCMDDES.FILE.6
Files
file uses the following file:
/etc/magic
Default system magic file.
For file to work, you need to copy the magic file from the /samples
directory to the /etc directory.
For more information about enabling file, see the section on copying
configuration files in z/OS UNIX System Services Planning. Additional
information about the magic file can be found in "magic -- Format of
the /etc/magic file" in topic MGC.
Have you ever bought a car that you had to install the
tires yourself before it would work?
Apparently this requirement is well known among coloro che sanno
of OMVS systems programmers. Ours is mandolinisto; he's overburdened
with other stuff.
Presumably this is to avoid regressing user mods to members of /etc.
But there's a way to deal with this. Years ago I took a class in SMP/E
software maintenance (Amdahl taught it). One of the exercises was
to APPLY a USERMOD then attempt to APPLY service that conflicted with
the USERMOD. It failed. RESTORE the USERMOD; APPLY the PTF; then
re-APPLY the USERMOD. Why is /etc/magic not handled this way?
(I'm confident that we have no user mods to that file.)
(Of course, this would work a lot better if SMP/E supported patch(1)
as a utility for maintaining OMVS text files, even as it supports IEBUPDTE
for maintaining legacy text files.)
-- gil
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