15. Interactive and Nonstandard Shell Features

In This Chapter

• Getting the Right Shell

• The ENV File

• Command-Line Editing

• Command History

• The vi Line Edit Mode

• The emacs Line Edit Mode

• Other Ways to Access Your History

• Functions

• Integer Arithmetic

• The alias Command

• Arrays

• Job Control

• The Restricted Shell rsh

• Miscellaneous Features

• Compatibility Summary

• Exercises

In this chapter you’ll learn about shell features that are either useful to interactive users or not part of the POSIX shell standard. These features are available in Bash and the Korn shell, the two most commonly available POSIX-compliant shells.

The Korn shell was developed by David Korn of AT&T Bell Laboratories. It was designed to be “upward compatible” ...

Get Unix Shell Programming, Third Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.

Start your free trial