8
SHELL PROGRAMMING
Chapter Objectives
- The meaning of variables and different types of shell variables
- Writing shell scripts
- Executing shell scripts
- How to make shell scripts interactive using the read command
- Positional parameters, their usage to read command line arguments and their manipulation
- The exit status and performing various types of tests
- Decision making and loop–control statements
- Integer computing and string handling using expr
- Performing real arithmetic
- Debugging scripts
- Recording a session using the script command
- Having a working environment according one's taste using .profile
One of the important components of all Unix systems is the shell, which acts as a command processor as well as a programming language. We have ...
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