Updating the onbar Script

When the installation program installs the database server files, including the ON–Bar files, the onbar script is distributed as a shell script so that users can add any preprocessing or postprocessing steps to the script.

To prevent the loss of user changes in the existing onbar script, the onbar script is distributed as a file named onbar.sh (UNIX) or onbar.bat (Windows). When the install program installs the database server files over an existing installation, it checks whether any difference exists between the new onbar script and the old onbar script.

• If the two scripts are the same, the installation program renames the onbar.sh or onbar.bat file to onbar, the new onbar script overwrites the old onbar script, and no user data is lost.
• If a difference exists between the new onbar script and the old onbar script, the installation program renames the onbar.sh or onbar.bat file to onbar, renames the old onbar script to the form onbar.date, and issues a message to the user that the existing onbar script was renamed.

If you see a message that the old onbar script has been renamed by appending a date, look at the new onbar script (filename onbar) and integrate the contents of the old onbar script into the new onbar script. For example, if onbar has been renamed to onbar.2000.12.15, integrate the contents of onbar.2000.12.15 into onbar.

For information on using the onbar script, see Customizing ON-Bar and Storage-Manager Commands. For information on installing the database server, see your IBM Informix: Installation Guide.