Writing UNIX Shell Programs

Overview/Description
To describe how to use flow control, incorporate user input in UNIX shell programs, and debug shell programs

Target Audience
IT professionals and UNIX end-users who need to familiarize themselves with the UNIX shell environment

Prerequisites
Familiarity with the fundamentals of the UNIX operating system and the ability to navigate a file system and use basic shell commands

Expected Duration (hours)
3.7

Lesson Objectives

Writing UNIX Shell Programs

explain the principles of logical flow in a shell program

use conditional expressions to provide flow control in shell programs.

use flow control commands in shell programs.

use conditional expressions and flow control in a shell program.

use functions to improve the efficiency of program code.

use the UNIX I/O system in shell programs.

create user menus with the select command and use them in shell programs.

write an interactive program that makes use of standard input and output.

use variables, comments and white space to produce human-readable code.

explain how to debug shell scripts.

debug a shell program.