Variable expansion - PowerPoint PPT Presentation

bash

bash. Henning Schulzrinne Department of Computer Science Columbia University. Shells. Each OS has one, but different levels of sophistication Windows Command Prompt sh – original /bin/sh bash – Bourne-Again Shell, derived from sh ksh – Korn shell = superset of sh

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Lecture 11: Bourne Shell ( ch 8)

Lecture 11: Bourne Shell ( ch 8). IT244 - Introduction to Linux / Unix Instructor: Bo Sheng. Parameters and Variables. Remove a variable person= echo $person unset person. Variable Attributes. readonly variables person= zach echo $person readonly person person= helen readonly.

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324 views • 21 slides

CST8177 bash Scripting

CST8177 bash Scripting. Chapters 13 and 14 in Quigley's &quot;UNIX Shells by Example&quot;. bash String Operators. These are called Variable Modifiers and Variable Expansion Substrings in the textbook (Page 823 to 828)

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256 views • 20 slides

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