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Full Discussion: using sed or grep to find exact match of text
Top Forums UNIX for Dummies Questions & Answers using sed or grep to find exact match of text Post 302249807 by ghostdog74 on Wednesday 22nd of October 2008 06:39:15 AM
Old 10-22-2008
Quote:
Originally Posted by risk_sly
Hi,

Can anyone help me with the text editing I need here. I have a file that contains the following lines for example: (line numbers are for illustration only)

1 Hello world fantasy.
2 Hello worldfuntastic.
3 Hello world wonderful.

I would like to get all those lines of text that contains the word "world" without anything after it. Meaning, I would like to have lines 1 and 3, line 2 should not be included because it contains "worldfuntastic", no space between.

1 Hello world fantasy.
3 Hello world wonderful

The problem is, there are some lines that use TAB to separate words like line 3. When I use grep "world " <filename>, this will get all lines of text with the word "world" and space after it but not those with TAB, i.e. the results would only be:
1 Hello world fantasy

line 3 is not included because "world" and "wonderful" are separated by TAB. Any suggestions, please?

if you want to grab whole words, the basic logic is to go through each word, and check against what you want to find using equality "==" operator
Code:
awk '{
 for ( i=1;i<=NF;i++){
  if ( $(i) == "world"){
   print $0
  } 
 }
}
' file

 

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LEARN ABOUT DEBIAN

perl2html

PERL2HTML(1p)						User Contributed Perl Documentation					     PERL2HTML(1p)

NAME

       perl2html - generate Perl documentation in HTML

SYNOPSIS

       perl2html [--[no]toc] [--hr level] [--bgcolor #rrggbb] [--text #rrggbb] [--v verbosity] PerlDir HTMLDir

DESCRIPTION

       perl2html translates Perl documentation to HTML.  PerlDir is the root of the Perl source tree.  The HTML pages are organized into a
       directory tree rooted at HTMLDir.  A top-level index is written to HTMLDir"/index.html"

       In addition to the Perl sources, perl2html searches @INC for module PODs, and $ENV{PATH} for program PODS.

       All the HTML pages are created world-readable.

       Perldir and HTMLDir must be absolute path names.

OPTIONS

       "--"["no"]"toc"
	   Includes or omits a table of contents in each page.	Default is to include the TOC.

       "--hr" level
	   Controls the profusion of horizontal lines in the output, as follows:

	       level   horizontal lines
	       0       none
	       1       between TOC and body
	       2       after each =head1
	       3       after each =head1 and =head2

	   Default is level 1.

       "--bgcolor" #rrggbb
	   Set the background color to #rrggbb.  Default is off-white.

       "--text" #rrggbb
	   Set the text color to #rrggbb.  Default is black.

       "--v" verbosity
	   Verbosity level: 0, 1, 2, 3

REQUIRES

       Perl 5 "Getopt::Long",

SEE ALSO

       "pods2html", "Pod::Tree", "Pod::Tree::HTML", "Pod::Tree::PerlBin", "Pod::Tree::PerlDist", "Pod::Tree::PerlFunc", "Pod::Tree::PerlLib",
       "Pod::Tree::PerlMap", "Pod::Tree::PerlPod", "Pod::Tree::PerlTop"

AUTHOR

       Steven McDougall, swmcd@world.std.com

COPYRIGHT

       Copyright 2000 by Steven McDougall.  This program is free software; you can redistribute it and/or modify it under the same terms as Perl.

perl v5.10.1							    2004-03-29							     PERL2HTML(1p)
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