Unix in easy steps instructs the reader how to use the BASH command-line interface and how to employ BASHs powerful programming abilities. Complete examples illustrate each aspect with colorized source code and full-color screenshots depict the actual output. Unix in easy steps begins by demonstrating BASH commands for system navigation and file manipulation so the reader can quickly become familiar with the command-line interface. It explains all the BASH basics before moving on to describe advanced features such as: - command history - command-line editing - environment customisation. This book then introduces BASH programming with examples of flow control, command switches, input/output, job control, and program debugging - allowing the reader to create their own executable programs by copying the books examples.