On Fri, 14 Nov 2014 23:05:25 +1100, Paul Gillis <[email protected]> wrote:

>I have used the @BRLOG rexx exec, freely supplied by IBM, to perform post IPL 
>analysis on the head of the active syslog. Redbook 
>http://www.redbooks.ibm.com/redbooks/pdfs/sg247419.pdf points to 
>ftp://www.redbooks.ibm.com/redbooks/SG247419 to  download SG277419.zip and 
>@brlog.rex is in the ch06 directory. The Redbook chapter 6 says you can direct 
>the output to a dataset or to a path name where you can head/tail the SYSLOG 
>data.
> 
Where I see:

    If the path name parameter is present, @BRLOG copies all SYSLOG data sets to
    a temporary MVS data set and copies using OCOPY to the path that is 
specified.  ...

Kinda roundabout, isn't it?  Why not write directly to the path specified?
Not indicative of a high degree of craftsmanship.

    ...Finally, using the TSO command, OEDIT allows the user to view it. Copying
    the path name does use a Carriage Return/Linefeed (CR/LF) to separate the
    file records. 

<CR><LF>!?  Ugh!  Not the z/OS Unix System Services convention.

I see no mention of "tail" in Chapter 6, much less of "tail -f" (presuming
that such dynamic updating was among the OP's objectives).  I doubt
that "tail -f" would be effective.
>
>> -----Original Message-----
>> From: Paul Gilmartin
>> Sent: Friday, 14 November 2014 1:56 AM
>> 
>> On Thu, 13 Nov 2014 08:39:13 -0600, Elardus Engelbrecht wrote:
>> 
>> >To Lizette: The word 'tail' is an Unix term where you send the last x lines 
>> >to
>> somewhere else. I believe there is also something like 'head' for send the 
>> first
>> x lines to somewhere else. Generally useful with the pipe command.
>> >
>> The OP may be thinking of "tail -f fllename", where the "-f" option means to
>> periodically (every few seconds) to extract ("stat()") the size of the file 
>> and
>> send any characters not previously sent (in the fashion of SDSF
>> "DOWN MAX &nn").  The OP may have wanted such dynamic updating.

-- gil

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