DB2 Linux history command

12 January,2011 by Jack Vamvas

The history command , at it’s most simple will display the history list of recently recorded commands which are called events.

In troubleshooting – DB2 problems – I’ve found it to be very useful – particularly in verifying whether certain commands have been executed. There are many other methods of verifying history – either through DB2 logging and application layer logs .

 Executing the command is  and the example below , I’ve displayed the last 10 commands executed.

 [root@myserver logs]# history

 

 

  988  ls

  989  /root/bin/db2_storage.sh db2inst1

  990  cd logs

  991  ls

  992  cat BACKUP_WEEKLY_110111.log

  993  su - db2inst1

  994  ls

  995  su - db2inst1

  996  ls

  997  history

 

 

I’ve found it to be useful in situations such as , an administrator denying they have executed a command . In that case , a simple output can clear up misunderstandings.

 

I’ve presented a simple example , but there are more interesting ways of using the command for DB2 administrators – consider:

a)Export the list for future use:

 

history –w history_DDMMYY.out

 

 Ref:Jack Vamvas(http://www.dba-db2.com)

 

Author: Jack Vamvas(http://www.dba-db2.com)

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