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Linux Shell Scripting with Bash
book

Linux Shell Scripting with Bash

by Ken O. Burtch
January 2004
Intermediate to advanced
432 pages
7h 49m
English
Sams
Content preview from Linux Shell Scripting with Bash

Chapter 4. Script Basics

I was first introduced to computers when my high school purchased a shiny new TRS-80, Model I. The computer was installed in the library, free for anybody to use. I remember following the dog-eared manual and typing in my first BASIC program.

10 PRINT "KEN WAS HERE";
20 GOTO 10

When I ran the program, I was in for a surprise. Not only did the computer faithfully carry out my instructions over and over, but also the words scrolling up the screen formed a shifting pattern. When the screen became full, it scrolled to make room for more messages. If I changed the length of the message to a number that evenly divided into 64 (the TRS-80 had 64 character lines), the messages marched up the screen in neat columns. There was unexpected ...

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Publisher Resources

ISBN: 0672326426Purchase book