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Removing a Persistent or Transient Change

After a commit script changes the configuration, you can remove the change and return the configuration to its previous state.

For persistent changes only, you can undo the configuration change by issuing the delete, deactivate, or rollback configuration mode command and committing the configuration. For both persistent and transient changes, you must remove, delete, or deactivate the associated commit script, or else the commit script regenerates the change during a subsequent commit operation.

Deleting the file filename statement from the configuration effectively “unconfigures” the functionality associated with the corresponding commit script. Deactivating the statement adds the inactive: tag to the statement, effectively commenting out the statement from the configuration. Statements marked as inactive do not take effect when you issue the commit command.

1. For persistent changes only, delete or deactivate the statement that was added by the commit script:

   [edit]user@host# delete (statement | identifier)- OR –user@host# deactivate (statement | identifier)

   Alternatively, you can roll back the configuration to a candidate that does not contain the statement.

   [edit]user@host# rollback number

2. Either delete or deactivate the commit script, or remove or comment out the section of code that generates the unwanted change. To delete or deactivate the script, issue one of the following commands.

   [edit]user@host# delete system scripts commit file filename- OR –user@host# deactivate system scripts commit file filename

3. Issue the commit command:

   [edit]user@host# commit

4. If you are deleting the reference to the script from the configuration, you can also remove the file from commit scripts storage directory (either /var/db/scripts/commit on the hard drive or /config/scripts/commit on the flash drive; for information about setting the storage location for commit scripts, see Storing Scripts in Flash Memory.) To do this, exit configuration mode and issue the file delete operational mode command:

   [edit]user@host# exit
   user@host> file delete /var/db/scripts/commit/filename - OR – user@host> file delete /config/scripts/commit/filename