UNIX Add OS Date to Filename

Add the UNIX date to an Oracle file name

UNIX allows the user to enter the date command to see the current date.  This command can be captured inside a UNIX script and use the date as part of the UNIX filename. 

The following shows how the UNIX date function with date masks can be used to change the display values according to user needs:

      YEAR=`date +"%Y"`
      MONTH=`date +"%m"`
      DAY=`date +"%d"`
      HOUR=`date +"%H"`
      MINUTE=`date +"%M"`

In some cases, the goal is to record the current UNIX date inside an Oracle log file.

 The following script places the date into a log file, indicating the exact time that a UNIX task ended:

echo End `date` > /usr/local/bin/scripts/logs/tar_end.lst

The following clever command uses the UNIX tee command in conjunction with the UNIX date command. 

It appends the current UNIX date and also uses the tee command to direct the output both to standard out as well as the progress.log file:

echo "Rebuild start for ${TABLESPACE}. . "\
     `date +"%H:%M "`|tee -a progress.log

The following handy UNIX script for check files with specific dates embedded in the UNIX file name. Once the files are written with the UNIX date, the UNIX files can be checked based on date.

The script below takes the current data and display all files in the /u01/backup/logs directory that have the current day and month.

mdate=`date`
mday=`echo $mdate|awk '{print $3}'`
mmonth=`echo $mdate|awk '{print $2}'`

echo  month $mmonth
echo  day $mday

ls -alt /u01/backup/logs|grep `echo $mmonth $mday`

Guarantee your Success! Oracle is the world's most complex, robust and flexible database, considered impossible to master without a mentor. That's why all BC Oracle trainers are working professionals, experts in Oracle who share their tips and secrets.

Burleson is the American Team Note: This Oracle documentation was created as a support and Oracle training reference for use by our DBA performance tuning consulting professionals.  Feel free to ask questions on our Oracle forum. Verify experience! Anyone considering using the services of an Oracle support expert should independently investigate their credentials and experience, and not rely on advertisements and self-proclaimed expertise. All legitimate Oracle experts publish their Oracle qualifications. Errata?  Oracle technology is changing and we strive to update our BC Oracle support information.  If you find an error or have a suggestion for improving our content, we would appreciate your feedback.  Just  e-mail:  and include the URL for the page.                      Burleson Consulting The Oracle of Database Support Oracle Performance Tuning Remote DBA Services   Copyright ? 1996 -  2012  All rights reserved. Oracle ? is the registered trademark of Oracle Corporation.