UNIX Shell Programming Part 3: Korn Shell

Audience

The intended audience for this course are programmers working in a UNIX environment. Students should have taken the first two parts of this series (13891 and 13892).

Objective

• Identify features of the Korn shell.
• Match shell types with their main features.
• Set access permissions on a file.
• Identify features of standard input and output.
• Identify features of pipes and filters.
• Identify the procedure used to redirect commands through a pipe.
• Identify features of the trap command.
• Identify features of exiting shell scripts.
• Perform the action to parse a command line input by using getopts.

Topics Include

Unit 1: Korn Shell Fundamentals

• Identify features of the Korn shell.
• Match shell types with their main features.
• Set access permissions on a file.
• Sequence the steps for scheduling processes by using crontab.
• Schedule a process by using the at command.
• Identify features of the grep command.
• Identify features of the sed command.
• Identify options available with the sed command.
• Identify features of sed scripts.
• Identify methods of customizing the Korn shell environment.
• Identify features of aliases.
• Identify features of the command line.
• Identify the features of command line history.
• Create a basic shell script.
• Identify features of shell metacharacters.
• Identify the functions of basic regular expressions.
• Identify the methods to search for files and commands by using regular expressions.
• Identify features of variables.
• Identify the functions of special characters and quotes.
• Identify features of command substitution.

Unit 2: Interaction and Programming

• Identify features of standard input and output.
• Identify features of pipes and filters.
• Identify the procedure used to redirect commands through a pipe.
• Identify features of the read command.
• Identify the functions of the print command and its options.
• Identify features of arithmetic operations in the Korn shell.
• Identify features of using arguments in a shell script.
• Identify the syntax of the test command.
• Identify types of commands to change the flow of a program.
• Identify functions of repetition commands.
• Create a simple shell script by using the select command.
• Identify commands for controlling repetitions.
• Identify features of the case command.
• Identify the features of functions.
• Identify the guidelines for using shell functions.

Unit 3: Korn Shell Programming

• Identify features of the trap command.
• Identify features of exiting shell scripts.
• Perform the action to parse a command line input by using getopts.
• Identify the features of arrays.
• Identify the commands for controlling jobs.
• Identify features of coprocesses.
• Identify methods for debugging shell scripts.
• Identify the security features available in the Korn shell.

Duration

8

Minimum Requirements

The CDROM version of this course requires:

• At least a 486DX 33Mhz CPU.
• Microsoft Windows 3.1 or higher and a Microsoft compatible mouse.
• At least 8MB RAM.
• At least VGA graphics capability with a minimum 512K video RAM (1MB video RAM recommended).
• At least a double speed CDROM drive.
• An MPC compliant sound card with attached speakers or headphones is recommended (Currently only the CDROM version supports audio).

• At least a 486DX 33Mhz CPU.
• Microsoft Windows 3.1 or higher and a Microsoft compatible mouse.
• At least 8MB RAM and 22MB available hard disk space or file server space.
• At least VGA graphics capability with a minimum 512K video RAM (1MB video RAM recommended).

Media