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Full Discussion: awk script to check and throw error for multiplication result
Top Forums Shell Programming and Scripting awk script to check and throw error for multiplication result Post 303017024 by as7951 on Tuesday 8th of May 2018 07:50:32 AM
Old 05-08-2018
awk script to check and throw error for multiplication result
I need to multiply column1 and column3 data and need to compare it with column5. Need to check multiplication and Throw error if result is greater or less than column5 values, though difference of +/- 2 will be ok

Ex - if column1 has 2.4 and column3 has 3.5, it will be ok if column5 have value in range from row1(6.4 to 10.4), row2(248 to 252), row3(22634.8 to 22638.8) Only need to check multiplication result and Throw error. File has header too, but need to skip header while validating it.

Correct File

Code:
a|b|c|d|e
2.4||3.5||8.4
5||50||250
6.55||3456||22636.8
Correct file

Code:
a|b|c|d|e
2.4||3.5||7.4
5||50||251
6.55||3456||22635.8

Worng file :

Code:
a|b|c|d|e
2.4||3.5||6.3
5|50|247
6.55||3456||22634.4

Worng file

Code:
a|b|c|d|e
2.4||3.5||10.5
5||50||253
6.55||3456||22638.9

Below is code im trying :

This seems to be ok to check result greater than 2
Code:
if ($5 > $1 * $3 + 2 ) {print "Error 401: column1 and colmn3 does not match with column5,Field position 5, Linenumber:"NR,$0}

But below is not working to check if result is less than 2 and throwing error if result of multiplication is equal to $5
Code:
if ($5 < $1 * $3 + 2 ) {print "Error 402: column1 and colmn3 does not match with column5,Field position 5, Linenumber:"NR,$0}

 

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LEARN ABOUT OPENSOLARIS

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).

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +--------------------+-----------------+
       |  ATTRIBUTE TYPE    | ATTRIBUTE VALUE |
       +--------------------+-----------------+
       |Availability	    | SUNWgawk	      |
       +--------------------+-----------------+
       |Interface Stability | Volatile	      |
       +--------------------+-----------------+
NOTES

       Source for gawk is available on http://opensolaris.org.

Free Software Foundation					    Nov 3 1999								  IGAWK(1)
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