June 2012
Intermediate to advanced
136 pages
2h 50m
German
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Shell-Tools
awk, sed und egrep bilden eine Gruppe von Unix-Shell-Tools zur Bearbeitung von Text. awk verwendet eine DFA-Engine, egrep schaltet, je nachdem, welche Features verwendet werden, zwischen einer DFA- und einer NFA-Engine um, und sed arbeitet mit einer NFA-Engine. Eine Erläuterung der Regeln, nach denen sich diese Engines richten, finden Sie im Abschnitt »Einführung in reguläre Ausdrücke und in das Pattern-Matching«.
Diese Referenz behandelt GNU egrep 2.4.2 (ein Programm, das nach Textzeilen sucht), GNU sed 3.02 (ein Scripting-Tool für Editierbefehle) und GNU awk 3.1 (eine Programmiersprache zur Textbearbeitung).
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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.