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Full Discussion: Optimize awk code
Top Forums Shell Programming and Scripting Optimize awk code Post 302965996 by SkySmart on Friday 5th of February 2016 10:48:50 PM
Old 02-05-2016
Thanks RudiC. I took your suggestions into consideration and combined all those commands into one awk command. Thanks so much.

In doing the above, i discovered the code i originally pasted in this thread is not the reason why the script was slow. I found out that it is the for loop below that takes at least 4 seconds to complete.

can anyone help me optimize the below code?

Content of variable VALUESA:

Code:
VALUESA="1751-1451549113_0--1751
1445-1451549413_0--1445
1864-1451549713_0--1864
1410-1451550013_0--1410
655-1451550313_0--655
147-1451550613_0--147
209-1451550913_0--209
1472-1451551213_0--1472
1984-1451551513_0--1984
690-1451551813_0--690
652-1451552113_0--652
1161-1451552413_0--1161
1314-1451552713_0--1314
1030-1451553013_0--1030
428-1451553313_0--428
262-1451553613_0--262
95-1451553913_0--95"

The slow for loop:

Code:
                                        ZPROCC=$(
                                        for ALLF in $(echo ${VALUESA} | sort -r | xargs)
                                        do
                                                ALL=$(echo "${ALLF}" | gawk -F"-" '{print $1}') ; ZSCORE=$(gawk "BEGIN {if($STDEVIATE>0) {print (${ALL} - ${AVERAGE}) / ${STDEVIATE}} else {print 0}}")
                                                EPTIME=$(echo "${ALLF}" | gawk -F"-" '{print $2}' | awk -F"_" '{print $1}')
                                                FIXED=$(gawk -v c="perl -le 'print scalar(localtime("${EPTIME}"))'" 'BEGIN{c|getline; close(c); print $0;}')
                                                ACSCORE=$(echo ${FIXED} ${EPTIME} | gawk '{print "["$2"-"$3"-""("$4")""-"$5"]"}')
                                                echo "frq=${ALL},std=${ZSCORE},time=${ACSCORE},epoch=${EPTIME},avg=${AVERAGE}"
                                        done)

 

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PRINT(3)								 1								  PRINT(3)

print - Output a string

SYNOPSIS
int print (string $arg) DESCRIPTION
Outputs $arg. print is not actually a real function (it is a language construct) so you are not required to use parentheses with its argument list. PARAMETERS
o $arg - The input data. RETURN VALUES
Returns 1, always. EXAMPLES
Example #1 print examples <?php print("Hello World"); print "print() also works without parentheses."; print "This spans multiple lines. The newlines will be output as well"; print "This spans multiple lines. The newlines will be output as well."; print "escaping characters is done "Like this"."; // You can use variables inside a print statement $foo = "foobar"; $bar = "barbaz"; print "foo is $foo"; // foo is foobar // You can also use arrays $bar = array("value" => "foo"); print "this is {$bar['value']} !"; // this is foo ! // Using single quotes will print the variable name, not the value print 'foo is $foo'; // foo is $foo // If you are not using any other characters, you can just print variables print $foo; // foobar print <<<END This uses the "here document" syntax to output multiple lines with $variable interpolation. Note that the here document terminator must appear on a line with just a semicolon no extra whitespace! END; ?> NOTES
Note Because this is a language construct and not a function, it cannot be called using variable functions. SEE ALSO
echo(3), printf(3), flush(3), Heredoc syntax. PHP Documentation Group PRINT(3)
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