December 2008
Intermediate to advanced
320 pages
6h 45m
English
Content preview from Expert Shell Scripting
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CHAPTER 16Scripting from the CommandLine
One of the advantages of working at the shell command line is that you're working in a shell. That sounds sort of obvious and dumb, but please bear with me; pretty much anything you can do in a shell script, you can also do from the command line. I've coded many ad hoc scripts right at the command line. I wouldn't recommend writing anything significant that way, but for quickies it's just the ticket.
If you start a loop or conditional, such as a while, for, or if/then statement, while working at the shell prompt, the command line is extended until you have finished the steps in the code block. In a traditional script, such code would customarily span several lines in a file. Here is a typical interaction ...
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I 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.
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I'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.