Skip to Main Content
Expert Shell Scripting
book

Expert Shell Scripting

by Ron Peters
December 2008
Intermediate to advanced content levelIntermediate to advanced
320 pages
6h 45m
English
Apress
Content preview from Expert Shell Scripting

CHAPTER 19Instant Keyboard Response

There are times you may want to enter some input or perform an action without having to use the Enter key. A while back, I encountered this problem when I needed to view the numerical output of ballistic equations. I wanted to be able to increment or decrement an input value and recalculate the results by pressing just one key. I came up with a script that would do this, and display both the changed input value and the new results calculated from it. The example script here, while interesting, is just a simple demonstration of how to process instant response.

My script accomplished its task quite well. The following script is a simplified version that calculates and displays the values for a projectile's trajectory. ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Robust Shell Scripting

Robust Shell Scripting

Arnold Robbins
Hacker Techniques, Tools, and Incident Handling

Hacker Techniques, Tools, and Incident Handling

Sean-Philip Oriyano, Michael Gregg

Publisher Resources

ISBN: 9781430218418Purchase book