A shell script to make a menu driven calculator using case.
Building a Menu. One common way of presenting a user interface for a text based program is by using a menu. A menu is a list of choices from which the user can pick. In the example below, we use our new knowledge of loops and cases to build a simple menu driven application.
Put it somewhere the shell can find it Writing A Script A shell script is a file that contains ASCII text. To create a shell script, you use a text editor.A text editor is a program, like a word processor, that reads and writes ASCII text files.
This shell script shows how to script menu-based programs in linux. This sample program implements menus using dialog utility. Menu-items and action according to select menu-item is as follows.
This Linux Bash Shell Programming training course is designed to give delegates practical experience in developing and writing LINUX shell scripts. Most of the built-in shell commands are introduced together with the main program control structures.
I am required to write a Bourne Again Shell Script (bash) to manage a menu driven program. When executed the user should be presented with a menu with 4 (four) options: 1. Print the following user information: the home directory, path, userid, login shell together with the current date and time. 2.
Find out more about the Linux Bash Shell Programming - In-house Training course from StayAhead Training on findcourses.co.uk, the nation’s favourite course comparison site.
Python Program to Make a Simple Calculator In this example you will learn to create a simple calculator that can add, subtract, multiply or divide depending upon the input from the user. To understand this example, you should have the knowledge of the following Python programming topics.