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Full Discussion: Awk, highest and lowest value of a column
Top Forums UNIX for Dummies Questions & Answers Awk, highest and lowest value of a column Post 302831349 by Yoda on Wednesday 10th of July 2013 06:37:51 PM
Old 07-10-2013
Here is another awk approach:
Code:
awk '
        {
                if ( $1 in L )
                {
                        L[$1] = L[$1] > $2 ? $2 : L[$1]
                        H[$1] = H[$1] < $2 ? $2 : H[$1]
                }
                else
                {
                        L[$1] = $2
                        H[$1] = $2
                }
        }
        END {
                for ( k in L )
                        print k, L[k], H[k]
        }
' file

These 3 Users Gave Thanks to Yoda For This Post:
bjoern456 dimasnava jfmunoz
 

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LEARN ABOUT LINUX

igawk

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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