Famous Sed One-Liners Explained, Part I: File Spacing, Numbering and Text Conversion and Substitution - good coders code, great reuse

Famous Sed One-Liners Explained, Part I: File Spacing, Numbering and Text Conversion and Substitution - good coders code, great reuse:

This is such a great blog! I really liked his awk one-liners explained, but I see he has done the same for sed (I really never understood all the ones using "G" before):

"Inspired by the success of my "Awk One-Liners Explained" article (30,000 views in first three days), I decided to explain the famous sed one-liners as well.

These one-liners, just like the Awk one-liners, are compiled by Eric Pement.

You may download them here: sed one-liners (link to .txt file).

Most people are only familiar with one particular command of sed, namely the "s" (substitute) comand. s/comand/command/. That is unsatisfactory. Sed has at least 20 different commands for you. You can even write tetris in it (not to mention that it's Turing complete).

My sed learning process was actually identical to Awk learning process. First I went through Bruce Barnett's sed tutorial; then I created a sed cheat sheet; and finally went through sed one-liners. I could not figure one of the one-liners in the file, so I ended up asking for help in comp.unix.shell.

Eric's sed one-liners are divided into several sections:

• 1. File spacing (explained in this part).
• 2. Numbering (explained in this part).
• 3. Text conversion and substitution (explained in this part).
• 4. Selective printing of certain lines (explained in part two).
• 5. Selective deletion of certain lines (explained in part three).
• 6. Special applications (explained in part three).
• 7. Release of Sed One-Liners Explained e-book. "

and look at these:

Top Ten Articles:

• Top Ten One-Liners from CommandLineFu Explained
• My Job Interview at Google
• MIT's Introduction to Algorithms, Lectures 1 and 2: Analysis of Algorithms
• Famous Awk One-Liners Explained, Part I: File Spacing, Numbering and Calculations
• The Definitive Guide to Bash Command Line History

Lots of good stuff! Check it out!

http://www.catonmat.net/blog/sed-one-liners-explained-part-one/

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