HP-UX Shell Programming
Starting dates and places
Description
Course Description:
This course is designed to give delegates practical experience in developing and writing HP-UX shell scripts. Most of the built-in shell commands are introduced together with the main program control structures. This course is not suitable for C shell programmers.
The delegates will practise:
- Writing simple scripts to enhance basic command output
- Using the various shell quoting mechanisms appropriately
- Manipulating shell variables and user-defined variables in scripts
- Implementing conditional execution facilities
- Using the shell's built-in loop constructs where appropriate
- Writing scripts to trap user interrupts
- Developing menu-driven shell scripts
This course includes the …
Frequently asked questions
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Course Description:
This course is designed to give delegates practical experience in developing and writing HP-UX shell scripts. Most of the built-in shell commands are introduced together with the main program control structures. This course is not suitable for C shell programmers.
The delegates will practise:
- Writing simple scripts to enhance basic command output
- Using the various shell quoting mechanisms appropriately
- Manipulating shell variables and user-defined variables in scripts
- Implementing conditional execution facilities
- Using the shell's built-in loop constructs where appropriate
- Writing scripts to trap user interrupts
- Developing menu-driven shell scripts
This course includes the following modules:
HP-UX Command Review
- Basic Unix commands
- General commands
- File and directory handling commands
- Filename generation characters
- I/O Redirection features
- Other commands
Getting Started
- What is a shell script?
- Development guidelines
- Creating and editing shell scripts
- Naming and storing shell scripts
- Executing shell scripts
Using Variables
- Environment variables
- Local variables
- Assigning values to variables
- Assessing variable values
- Using quotes
- Delimiting variable names
- Echo control sequences
Integer Arithmetic
- Using the expr command
- Using the (( )) notation
Handling Run Time Data
- The read command
- Command line arguments
Condition Execution
- The if statement
- The test command
- Other test notations
- Default and substitute variables
- Exit status codes
Loop Constructs
- The while loop
- The until loop
- The for loop
- The while true and until false loops
- Loop control commands
Multi-branch Decisions
- The case statement
- Menu driven applications
Functions
- What is a function?
- Syntax
- Examples
Interrupt Handling
- Interrupt signals
- Trapping interrupts
Additional Features andd Facilities
- The exec commands
- The includes notation
- More about loops
- Arrays
- Here Documents
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