> -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:[email protected]] On Behalf Of Dan Loerke > Sent: Friday, May 08, 2009 8:57 AM > To: [email protected] > Subject: Re: Accessing a big sequential file > > Put the file in USS and execute the tail command
The "tail" command in UNIX still reads the entire file. So, you have all the I/O to copy to UNIX, then all the I/O to read the UNIX file as well. Hum, let me backtrack. I assume that "tail" reads the entire file. Perhaps it does some sort of calculation to determine an initial position and does an fseek()? I don't really know! -- John McKown Systems Engineer IV IT Administrative Services Group HealthMarkets(r) 9151 Boulevard 26 * N. Richland Hills * TX 76010 (817) 255-3225 phone * (817)-961-6183 cell [email protected] * www.HealthMarkets.com Confidentiality Notice: This e-mail message may contain confidential or proprietary information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. HealthMarkets(r) is the brand name for products underwritten and issued by the insurance subsidiaries of HealthMarkets, Inc. -The Chesapeake Life Insurance Company(r), Mid-West National Life Insurance Company of TennesseeSM and The MEGA Life and Health Insurance Company.SM ---------------------------------------------------------------------- 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
