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Top Forums UNIX for Beginners Questions & Answers Compare Values between column in the same file Post 302982424 by Don Cragun on Wednesday 28th of September 2016 09:27:07 PM
Old 09-28-2016
I agree with RudiC that your specification (in both post #1 [after 20 edits] and in post #12) saying:
Quote:
if Column 3 has value= P then check column 7,8,9,10,12,13 (values should be zero in each) and hence sum of these columns should be zero.
if Column 3 has value= N then check column 7,8,9,10,12,13 (values should be zero in each) and hence sum of these columns should be zero.
appears to be a mistake. And to get the output you said you want, it would seem that if field #3 is N, you really want to check 7, 8, 9, 10, 11, and 13 instead of checking exactly the same fields for both P and N.

Assuming that that is correct, here is another awk script using the same underlying logic as the code RudiC suggested. This script builds the array of fields to be skipped for each letter than appears in the string in field #3 manually. RudiC's script depends on an extension to the standards (using an empty ERE in split() to create an array from single characters in a string) that is available in GNU awk but is not often supported on versions of awk available on UNIX systems and BSD-based systems. The standards say that the behavior of awk is unspecified when split() is called with an empty string specified as the field separator.

Unlike RudiC's code, this adds a new column to the header line as shown in the output header you said you wanted. And, while RudiC's code adds up all of the fields being checked, this code looks at each field individually and breaks out of the loop immediately if a non-zero value is found in a field that is to be checked.

The following awk script:
Code:
awk '
BEGIN {	# Initialize skip array: S[fn] = char
	# If field #3 contains the character specified by char, do NOT check
	# the contents of field #fn.
	S[7] = "S"
	S[8] = "E"
	S[9] = "A"
	S[10] = "M"
	S[11] = "P"
	S[12] = "N"
	S[13] = "C"
}
NR < 2 {# Add the requested heading field to the header line...
	print $0, "Newcolumn"
	# and skip to the next input line.
	next
}
{	# For all other input lines, check fields 7-13 inclusive:
	for(i = 7; i <= 13; i++)
		# If the character corresponding to the field is not prsent in
		# field #3 AND the field contains a non-zero value...
		if($3 !~ S[i] && $i) 
			# break out of the loop.
			break
	# Print the input line followed by "WARNING" if a non-zero value was
	# found in a field to be checked; otherwise, print the input line
	# followed by "GOOD".
	print $0, (i <= 13) ? "WARNING" : "GOOD"
}' file

when file contains the sample input you provided, produces the output:
Code:
COLUMN1 COLUMN2 COLUMN3 COLUMN4 COLUMN5 COLUMN6 SMS Email AO Mail Post N Cell Newcolumn
VEGE Potato E W 396 12 0 384 0 0 0 0 0 GOOD
VEGE Onion S W 17 0 17 0 0 0 0 0 0 GOOD
FRUIT APPLE N W 549 61 0 0 0 0 0 488 0 GOOD
FRUIT APPLE SE W 291 14 239 38 0 10 0 0 0 WARNING
FRUIT APPLE EAMS W 397 32 309 56 309 309 0 0 0 GOOD
FRUIT APPLE SEA W 808 58 663 87 488 20 0 0 0 WARNING

which seems to match the output you said you wanted.

If you want to try this on a Solaris/SunOS system, change awk to /usr/xpg4/bin/awk or nawk.
This User Gave Thanks to Don Cragun For This Post:
 

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