O'Reilly's bestselling book on Linux's bash shell is at it again. Now that Linux is an
established player both as a server and on the desktop Learning the bash Shell has been updated
and refreshed to account for all the latest changes. Indeed this third edition serves as the
most valuable guide yet to the bash shell.As any good programmer knows the first thing users
of the Linux operating system come face to face with is the shell the UNIX term for a user
interface to the system. In other words it's what lets you communicate with the computer via
the keyboard and display. Mastering the bash shell might sound fairly simple but it isn't. In
truth there are many complexities that need careful explanation which is just what Learning
the bash Shell provides.If you are new to shell programming the book provides an excellent
introduction covering everything from the most basic to the most advanced features. And if
you've been writing shell scripts for years it offers a great wayto find out what the new
shell offers. Learning the bash Shell is also full of practical examples of shell commands and
programs that will make everyday use of Linux that much easier. With this book programmers
will learn:How to install bash as your login shellThe basics of interactive shell use
including UNIX file and directory structures standard I O and background jobsCommand line
editing history substitution and key bindingsHow to customize your shell environment without
programmingThe nuts and bolts of basic shell programming flow control structures command-line
options and typed variablesProcess handling from job control to processes coroutines and
subshellsDebugging techniques such as trace and verbose modesTechniques for implementing
system-wide shell customization and features related to system security
