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Top Forums Shell Programming and Scripting Issue using awk to print min values for unique ids Post 303034331 by ncwxpanther on Tuesday 23rd of April 2019 11:33:37 AM
Old 04-23-2019
Issue using awk to print min values for unique ids

I am using the following script to search for and print minimum values for each individual Fields (3-14) for each unique id (Field 1). But when the field contains a "-99.99" ( I am ignoring "-99.99") and when the minimum value is the first line of a new id (Field 1), the output does not print Field 2, it leave a blank space. Any ideas on how to correct this?

The below snipit is looking for the min value in field 12 only.

Code:
awk ' /-99.99/ {next} {if (a[$1] == "") a[$1] = $12; if (a[$1] > $12) {a[$1]=$12" " $2} } END { for (i in a) { print i, a[i]} }'

Input file sample
Code:
01001   012017  10.64   3.96    4.45    3.48    9.58    10.76   4.44    5.03    2.78    1.45    1.26    3.24
01001   012018  3.94    6.18    4.47    4.79    11.07   3.01    4.27    6.37    6.48    4.52    6.16    9.95
01001   012019  6.77    3.79    3.96    -99.99  -99.99  -99.99  -99.99  -99.99  -99.99  -99.99  -99.99  -99.99
01003   011895  6.46    3.53    6.69    4.63    3.54    11.71   7.64    8.02    2.45    3.21    1.35    4.05
01003   011896  3.80    5.88    5.63    2.45    2.83    6.98    5.24    5.60    2.90    5.38    4.09    2.45

Current Output
Code:
01001   1.45 
01003   3.21  011895

Expected Output
Code:
01001   1.45  012017 
01003   3.21  011895


Last edited by ncwxpanther; 04-24-2019 at 11:34 AM.. Reason: Provide Clarity
 

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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). Free Software Foundation Nov 3 1999 IGAWK(1)
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