Know how to remove password expiry in Linux system. This is helpful in setting app accounts which needs non-expiry passwords to run.
Small script to get LUN id from powermt output when supplied with list of disks. Its tedious job to extract LUN id from output when you have list of disks to wok upon.
Learn how to get list of processes consuming high memory or CPU on kernel in sorted order using unix95. Helpful for troubleshooting high system utilization.
Learn to restore nagios configuration backup. If you messed up nagios configuration, you can restore last known good config using these steps.
Know how to remove password expiry in HPUX trusted system. This is helpful in setting app accounts which needs non-expiry passwords to run.
Search for highest sized file in mount point. Useful while dealing with full mount points and cleaning up files to free up space.