Unix bash shell scripting will improve the speed of a system admin to do the tasks. We can automate the day to day activities using shell scripting. Also analyse the logs and send reports to the administrator on a daily basis. Other tasks like custom backups, crash recovery etc. 

I can help you in creating unix shell scripts for doing tasks, which is needed for linux administration easier. Also create script for bulk log/data analysis for the investigation purposes.

• Doing customised backups 
• Automation jobs 
• Log analysis and sending reports 
• Nagios plugins 
• Data recovery scripts. 

You can contact me for learning bash shell scripting and I can arrange Skype or any other online chat interface for the learning process.