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Top Forums Shell Programming and Scripting Filter file to remove duplicate values in first column Post 302977896 by RavinderSingh13 on Saturday 23rd of July 2016 02:37:52 AM
Old 07-23-2016
Hello LMHmedchem,

Could you please try following and let me know if this helps you.
Code:
awk 'NR==1{print;next} {A[$1]=$0;C=C<$1?$1:C} END{;for(i=0;i<=C;i++){if(A[i]){print A[i]}}}'   Input_file

Output will be as follows.
Code:
num     Name            PCA_A1     PCA_A2       PCA_A3
0       compound_00     -3.5054     -1.1207     -2.4372
1       compound_01     -2.2641     0.4287      -1.6120
3       compound_03     -1.3053     1.8495      -1.0224
4       compound_04     -1.1845     -0.3377     -2.9453
7       compound_07     -0.2988     1.3539      -1.6114
8       compound_08     2.6872     -1.3726      -5.9732
9       compound_09     -1.4546     -0.8284     -3.5016

Thanks,
R. Singh

Last edited by RavinderSingh13; 07-24-2016 at 09:01 AM.. Reason: Removed color from first line of solution.
 

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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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