Here's one way in the z/OS Unix shell to add a missing newline to the end
of a text file:
last=$(tail -c1 myfile)
test ${#last} != 0 && echo "" >> myfile
This is pretty efficient, but fails to add a newline if the file ends in a
nul (0x00) character.
Kirk Wolf
Dovetailed Technologies
http://dovetail.com
On Tue, Sep 23, 2014 at 3:03 PM, Paul Gilmartin <
[email protected]> wrote:
> On Tue, 23 Sep 2014 09:23:54 -0500, Bill Godfrey wrote:
> >
> >I have seen the very misleading 451 message when attempting this with a
> USS file in which the last line does not end with hex 15.
> >
> >If that is the case with your chars.a2e file, if you try the multi-byte
> transfer again after appending hex 15 to it, it should work.
> >
> Yes, it worked. But it raises a number of questions.
>
> o Is there a utility that will append "\n" only if the file doesn't
> already contain one?
> I tried a simple "sed" script. It failed on z/OS because my test case,
> intentionally
> containing every EBCDIC code point, contained a NUL. On Solaris, "sed"
> quietly
> discarded the NUL (which is hardly better); complained about the
> incomplete
> last line and supplied the "n".
>
> o So it's possible to have data errors in a text file. It would be the
> least courtesy
> to the programmer to report the point of error; byte offset in a UNIX
> file, line and
> column in a legacy data set. TCP/IP supports multi-line messages; this
> is a good
> application for such.
>
> o Unterminated last lines are endemic in Windows; it may be a convention.
> Will
> a Windows to Windows FTP transfer preserve them?
>
> o What FTP agents enforce the LINE_MAX limit when transferring text files?
>
> -- gil
>
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