Hour 21 Shell Scripting: The Administrator’s Swiss Army Knife
If I had to pick one core skill that differentiated good system administrators from mediocre ones, it would be shell scripting. It’s useful to know the tools in the operating system (or systems) you use, of course, but being able to put those tools together and build something that addresses the specific needs and requirements of your user community is a critical capability.
Throughout this book, you’ve had a chance to see many shell scripts, ranging from simple one-liners to rather sophisticated scripts with loops, conditional execution, return code analysis, and much more.
In this ...