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Image of Modern Operating Systems (3rd Edition)
Image of Linux Kernel Development (3rd Edition)
Image of Android Wireless Application Development
Image of Advanced Programming in the UNIX Environment, Second Edition (Addison-Wesley Professional Computing Series)

Bash-like Customizable Prompt in Korn Shell

Bash has built-in support for extensive PS1 prompt customization and as a result many people customize their shell prompts. There is no equivalent built-in support for PS1 customization in ksh93 but such support can easily be added using discipline functions.