> -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:[EMAIL PROTECTED] On Behalf Of Mark Zelden > Sent: Tuesday, January 29, 2008 4:17 PM > To: IBM-MAIN@BAMA.UA.EDU > Subject: Re: Keep only the tail of the dataset > > > On Tue, 29 Jan 2008 15:35:09 -0600, McKown, John > <[EMAIL PROTECTED]> wrote: > > >And none of these relate to the original post. The OP wanted > a automatic > >way to have a file wrap around after "n" writes. > > <snip> > > I'm not so sure of that. Re-read it. To me is sounded like > the OP had this > large file, but was only interested in the last n records. > Perhaps they > will clarify. > > Mark
Yes, after rereading the OP, I can see that now. So, the simple way is to put the data to a temporary file, then write another small program which buffers the last "n" records in memory. When that program gets EOF, then write the buffered records. Or use the "tail" command as so many others have indicated. -- John McKown Senior Systems Programmer HealthMarkets Keeping the Promise of Affordable Coverage Administrative Services Group Information Technology The information contained in this e-mail message may be privileged and/or confidential. It is for intended addressee(s) only. If you are not the intended recipient, you are hereby notified that any disclosure, reproduction, distribution or other use of this communication is strictly prohibited and could, in certain circumstances, be a criminal offense. If you have received this e-mail in error, please notify the sender by reply and delete this message without copying or disclosing it. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
