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Top Forums Shell Programming and Scripting Selecting specific 'id's from lines and columns using 'SED' or 'AWK' Post 302461492 by kamskamu on Monday 11th of October 2010 10:32:26 AM
Old 10-11-2010
Selecting specific 'id's from lines and columns using 'SED' or 'AWK'

Hello experts,
I am new to this group and to 'SED' and 'AWK'. I have data (text file) with 5 columns (C_1-5) and 100s of lines (only 10 lines are shown below as an example). I have to find or select only the id numbers (C-1) of specific lines with '90' in the same line (of C_3) AND with '20' in their previous line (of C_3) AND '40' in their next line (of C_3). That is, the id-list should represent all three conditions altogether.

My Data File:

C_1 C_2 C_3 C_4 C_5
1 1 90 0 406
2 0 20 -1 1500
3 1 90 0 377
4 0 60 -1 1500
5 4 90 1 275
6 0 40 -1 1500
7 4 90 1 228
8 0 80 -1 1500
9 1 90 0 414
10 0 60 -1 1500
-- - -- -- ---

Any 'SED' or ''AWK' command(s) could do this task..?
I would greatly appreciate your help..!

Thanking you in advance...!
Kamu
 

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWgawk | +--------------------+-----------------+ |Interface Stability | Volatile | +--------------------+-----------------+ NOTES
Source for gawk is available on http://opensolaris.org. Free Software Foundation Nov 3 1999 IGAWK(1)
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