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Full Discussion: Need help on an old post - How to convert a comma delimited string to records or lines of text?
Top Forums UNIX for Beginners Questions & Answers Need help on an old post - How to convert a comma delimited string to records or lines of text? Post 303028902 by bakunin on Thursday 17th of January 2019 06:27:16 PM
Old 01-17-2019
Quote:
Originally Posted by Just Ice
use 'cat -n'
Standard (POSIX) cat doesn't have any -n switch. This is because it is for conCATenating files. It is neither a display vehicle, nor a make-a-datastream-out-of-my-file-utility, fullscreen editor or anything else than a file concatenating tool.

Rob Pike and Brian Kernighan wrote a paper together ("cat -v considered harmful", Usenix conference 1983 if memory serves correctly) which later was the basis for the book "Programming in the UNIX environment" by the same authors. It should be a set book for every beginner in the UNIX world.

Here is a standard-conforming way of numbering lines, using sed. Interestingly enough i noticed that all three invocations of sed are necessary, it won't work with two:

Code:
echo 'a,b,c,d' | sed ':start;/,/ {h;s/,.*//p;g;s/^[^,]*,//;b start;}' | sed = | sed 'N;s/\n/   /'

I hope this helps.

bakunin
These 2 Users Gave Thanks to bakunin For This Post:
Don Cragun Neo
 

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LEARN ABOUT DEBIAN

chronicle-spooler

CHRONICLE-SPOOLER(1)					User Contributed Perl Documentation				      CHRONICLE-SPOOLER(1)

NAME

       chronicle-spooler - Automatically post pre-written entries.

SYNOPSIS

	 Path Options:

	  --config	   Specify a configuration file to read.
	  --spool-dir	   Specify where pending entries are located.
	  --live-dir	   Specify where the entries should be moved to.

	 Post-Spool Commands:

	  --post-move	Specify a command to execute once entries have been moved.

	 Optional Features:

	  --test	Only report on what would be executed.

	 Help Options:

	  --help	Show the help information for this script.
	  --manual	Read the manual for this script.

ABOUT

	 chronicle-spooler is a companion scrip to the chronicle blog compiler.

	 It is designed to facilitate posting new entries automatically upon
	particular dates.  (ie. If you have ten written blog entries in a spool
	directory it will move them into place upon the date you've specified.)

DATE SPECIFICATION

	 To specify the date a particular entry should be made live you
	must add another pseudo-header to your blog entry files, as follows:

	   Title:  This is the title of the blog post
	   Date:  2nd March 2007
	   Publish: 15th April 2008
	   Tags: one, two, three, long tag

	   The text of your entry goes here.

	 In this example we know that this entry will be made live upon the
	15th April 2008, and not before.

AUTHOR

	Steve
	--
	http://www.steve.org.uk/

LICENSE

       Copyright (c) 2008-2010 by Steve Kemp.  All rights reserved.

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.  The LICENSE file contains the
       full text of the license.

perl v5.12.3							    2011-05-03						      CHRONICLE-SPOOLER(1)
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