Skip to Content
Linux and Unix Shell Programming
book

Linux and Unix Shell Programming

by David Tansley
December 1999
Beginner
528 pages
11h 10m
English
Pearson Business
Content preview from Linux and Unix Shell Programming

25.3. Automating menus

Though here documents are great for creating menu screens you can also use them to automatically navigate a menu, instead of the user having to do it manually to select some process option.

I have a database menu script that takes care of all our database backups and administrative tasks. The database menu is used during the day to back up databases or run other administrative tasks. When it was decided to do all the database backups every night to be run from cron, I did not want to write another script. So I put together a here document that used its input to navigate the menu script called syb_backup. Here’s how the output of the menu script syb_backup looks.

I would have to press the following keys to be able to select ...

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.

Read now

Unlock full access

More than 5,000 organizations count on O’Reilly

AirBnbBlueOriginElectronic ArtsHomeDepotNasdaqRakutenTata Consultancy Services

QuotationMarkO’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
Julian F.
Head of Cybersecurity
QuotationMarkI wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.
Addison B.
Field Engineer
QuotationMarkI’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.
Amir M.
Data Platform Tech Lead
QuotationMarkI'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Mark W.
Embedded Software Engineer

You might also like

Shell Programming in Unix, Linux and OS X, Fourth Edition

Shell Programming in Unix, Linux and OS X, Fourth Edition

Stephen G. Kochan, Patrick Wood

Publisher Resources

ISBN: 0201674726Purchase book