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Top Forums Shell Programming and Scripting How to put the command to remove duplicate lines in my awk script? Post 303037653 by Don Cragun on Friday 9th of August 2019 12:14:45 AM
Old 08-09-2019
So from your description, you seem to be saying that the output you want instead of the output you've shown us would be just the two lines consisting of the one containing the dates and the line that contains the RAM values 99, 99, and .25???

The first line in the image you showed us is not produced by the script you have shown us (so I am not seeing how anything that awk might do will affect that line of output) and every other line in that image has the same value in all three columns. The output described above doesn't seem to be very useful.

Note that the awk code '!a[$0]++' will discard duplicated lines within all of the files processed by a single invocation of awk. But, since you are processing each of your 276 CSV input files in a separate invocation of awk there is no way for any of those invocations of awk to compare any input values from one input file to any input values from any other input file.
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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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