Learning The Bash Shell

Product Description

OReillys bestselling book on Linuxs bash shell is at it again. Now that Linux is an established player both as a server & on the desktop Learning the bash Shell has been updated & 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 its what lets you communicate with the computer via the keyboard & display. Mastering the bash shell might sound fairly simple but it isnt. 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. & if youve been writing shell scripts for years it offers a great way to find out what the new shell offers. Learning the bash Shell is also full of practical examples of shell commands & programs that will make everyday use of Linux that much easier. With this book programmers will learn: * How to install bash as your login shell * The basics of interactive shell use including UNIX file & directory structures standard I/O & background jobs * Command line editing history substitution & key bindings * How to customize your shell environment without programming * The nuts & bolts of basic shell programming flow control structures comm&-line options & typed variables * Process handling from job control to processes coroutines & subshells * Debugging techniques such as trace & verbose modes * Techniques for implementing system-wide shell customization & features related to system security