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Full Discussion: Search for string and display those NOT found
Top Forums Shell Programming and Scripting Search for string and display those NOT found Post 302118310 by John Rihn on Monday 21st of May 2007 08:37:40 AM
Old 05-21-2007
Hammer & Screwdriver
Quote:
Originally Posted by aigles
The following awk program display all the strings that have not been found in any of the input files. The strings are to be searched are read from the first input file.
Code:
#!/usr/bin/awk -f
# Filename: not_found

#
# Strings file.
#

NR==FNR {
   string_found[$1] = 0; # 0 = No, >0 = Yes
   next;
}

#
# New data file.
# Build array with strings not yet found
#

FNR==1 {
   for (str in string_found) {
      if (string_found[str] == 0) {
         strings[str]++;
         strings_count++;
      }
   }
   if (strings_count == 0) exit;
}

#
# Input data;
# Search data for strings not yet found
#

{
   for (str in strings) {
      if ($0 ~ str) {
         string_found[str]++;
         delete strings[str];
         if (--strings_count == 0) exit;
      }
   }
}

#
# No more files or allstrings have been found
# Print strings not found
#

END {
   for (str in string_found)
      if (string_found[str] == 0) print str;
}

The file string_list contains the strings to be search.
The file strings_not_found will contain the strings that have not be found in any of the files.
Don't put files string_list and strings_not_found in one of the directories that you want to scan.

Code:
chmod +rx not_found
not_found string_list $(find . -type f) > strings_not_found

Jean-Pierre.
Jean_Pierre,
I don't know where I would place my code within yours to make this all work. Can you help me? I have:

exec < home/padlist
while read d1 d2
do
find . -type f -print | xargs grep $d1 | more
done

This just prints to the display the lines where the search was found.

Thanks,

John
 

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LEARN ABOUT CENTOS

perl::critic::policy::valuesandexpressions::prohibitnoisyquotes

Perl::Critic::Policy::ValuesAndExpressions::ProhibitNoisUsertContributed Perl DoPerl::Critic::Policy::ValuesAndExpressions::ProhibitNoisyQuotes(3)

NAME

       Perl::Critic::Policy::ValuesAndExpressions::ProhibitNoisyQuotes - Use "q{}" or "qq{}" instead of quotes for awkward-looking strings.

AFFILIATION

       This Policy is part of the core Perl::Critic distribution.

DESCRIPTION

       Don't use quotes for one or two-character strings of non-alphanumeric characters (i.e. noise).  These tend to be hard to read.  For
       legibility, use "q{}" or a named value.	However, braces, parentheses, and brackets tend do to look better in quotes, so those are allowed.

	   $str = join ',', @list;     #not ok
	   $str = join ",", @list;     #not ok
	   $str = join q{,}, @list;    #better

	   $COMMA = q{,};
	   $str = join $COMMA, @list;  #best

	   $lbrace = '(';	   #ok
	   $rbrace = ')';	   #ok
	   print '(', @list, ')';  #ok

CONFIGURATION

       This Policy is not configurable except for the standard options.

SEE ALSO

       Perl::Critic::Policy::ValuesAndExpressions::ProhibitEmptyQuotes

AUTHOR

       Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>

COPYRIGHT

       Copyright (c) 2005-2011 Imaginative Software Systems.  All rights reserved.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.  The full text of this license
       can be found in the LICENSE file included with this module.

perl v5.16.3							    2014-06-09	Perl::Critic::Policy::ValuesAndExpressions::ProhibitNoisyQuotes(3)
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