Using the read command to make scripts interactive.

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Dynamic arguments passed to a script from the command line (e.g., $1 , $2 , $* ). 4. Control Structures and Decision Making

Yashavant Kanetkar's is a foundational text designed to bridge the gap between basic command usage and complex system automation. Originally published in 1996 by BPB Publications , it remains a popular academic resource due to its practical approach to the Bourne Shell and Unix philosophy. Core Structure and Philosophy

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Used to perform basic text transformations on an input stream (a file or input from a pipeline).