Learning Linux Shell Scripting - Second Edition

Neat Tricks with Shell Scripting

In the last chapter, you learned about shell and environment variables. You also learned how to export environment variables, read-only variables, command-line arguments, and create/handle arrays.

In this chapter, we will cover the following topics:

• Interactive shell scripts and reading from the keyboard
• Using the here operator (<<) and here string (<<<)
• File handling
• Enabling debugging
• Syntax checking
• Shell tracing