Its always good that we take a copy of the db2look(often called as the the skeleton of the db) of the respective database regularly as a foresight of the disaster crash recovery .
So Why don't we make it a regular process , I mean write a script and schedule with the crontab utility which will make your job easyHere is the script
1. Execute db2look
2. Tar the file
3. Copy to remote server
4. Remove old Files