15.6. Summary

Now that we have covered the major UNIX and Linux shells, you can start reading, writing, and maintaining scripts. Remember, a lot of time is spent debugging scripts. So often, you'll have a successful script, but you'll want to make it better. So, back in the editor you'll go make a few changes, try to run the program, and whoops! It's broken! With what you've learned in this chapter, you'll be able to keep these surprises to a minimum. If you are a system administrator and want to learn more about how the shells interact with the system, the next chapter will shed some light on topics that typically apply to the way the shells are used for system administration.