February 2001
Beginner to intermediate
448 pages
9h 2m
English
Content preview from Korn Shell Programming by ExampleBecome 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,
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Where vi Came From
UNIX editors have gone through an evolutionary process. The first UNIX editor was the ed editor. It was strictly a line-oriented editor (as opposed to a screen-oriented editor like vi). It still exists in most UNIX variants, but it has been relegated to special-case use. As an example, if your UNIX runs in single-user mode, the editor that tends to be used by a utility with an edit subfunction, at that time, is the ed editor. Single-user mode is usually entered to accomplish some specialized system admin task. While in single-user mode, the only file system that is mounted is the root file system (unless the administrator specifically mounts other file systems).
The vi editor program has been linked against shared libraries, ...
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O’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.
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.
I’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.
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.