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From: | reader |
Subject: | how to manipulate data like awk or perl when visiting a file |
Date: | Sun, 28 Dec 2008 22:14:27 -0600 |
User-agent: | Gnus/5.11 (Gnus v5.11) Emacs/22.1.50 (windows-nt) |
I want to get a leg up on how I might manipulate a file like I can with shell tools or awk/perl. Examples: I want to display only the first field of lines 30 thru 75 I want to reverse field 1 and 5 and print those plus 6 of each line. I want to add up the numbers that appears in field 7 of lines 11 through 28 printing the total to ~/sumtot.txt I'd like to see a few basic examples and maybe I'll be able to get the idea enough to do some of that when I need to. I don't really want to start way at the beginning of elisp to get started. I hoped maybe there are some examples like that available in existing info documents. I haven't noticed much talk here about those kinds of chores so maybe elisp isn't a good choice for that?
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