LPIC I Exam Cram™ 2: Linux Professional Institute Certification Exams 101 and 102

Chapter 15. Linux Shells and Scripting

Terms you’ll need to understand:

✓	Alias
✓	Environment
✓	Exporting
✓	Loop
✓	Options
✓	Quoting
✓	Variable

Techniques you’ll need to master:

✓	Declaring a variable
✓	Exporting a variable
✓	Writing and customizing scripts
✓	Setting and removing shell options
✓	Creating and listing functions
✓	Manipulating SUID rights

Writing Scripts

Thankfully, you don’t have to be much of a programmer or script-writer to fulfill the objectives of the LPIC Level 1, and the author is a prime example of that subset of quite competent sysadmins who are not programmers, nor does he feel that you have to be one. The questions you’ll be answering on the exam will be about simple scripting—little tasks that make life easier.

Writing a Simple Script

The easiest way ...