I am not a scripting expert, I have to admit that. I am not a sysadmin either. But I think that every developer has to possess wider knowledge about the tools and the platforms he uses.
At least for me, some basic – intermediate knowledge makes me more productive, has saved the day in the past and also makes my life easier.
For example, the power of Linux is that you can write scripts and schedule them with Cron to do a lot of things that is considered to be “dull-programming-stuff”. Let’s start with backups.
Or scheduling automatic backups for things that matter and are also more tricky to perform than simple file backups.
Or also monitoring website up-times and logging the results.