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Full Discussion: awk multiply fields within lines, then total
Top Forums Shell Programming and Scripting awk multiply fields within lines, then total Post 302552804 by mminaz on Monday 5th of September 2011 04:35:33 PM
Old 09-05-2011
awk multiply fields within lines, then total
Here is my scenario, I have two columns. I need to add the first columns (the easy part). The second column is a percent that I need to subtract by 100 then multiply against the first column for each line, then sum the output for a total

Here is the input:

Code:
942330863 96
942172150 95
942099452 92

I need this as an output:

Code:
2826602465 160169797

I tried this code, but it's just doing the percentage work and only doing it for the first line and not summing every line.

Code:
awk '
BEGIN {FS=","}                                                   
    NR == 1{ n1 = $1; x = substr((100-$2)/100,2,3); y = x*$1;  next }
    { n1 += $1; y += $y }
END { printf ("%-15d%d\n",n1,y) 
}'

Last edited by radoulov; 09-05-2011 at 05:49 PM.. Reason: Code tags!
 

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LEARN ABOUT FREEBSD

column

COLUMN(1)						    BSD General Commands Manual 						 COLUMN(1)

NAME

     column -- columnate lists

SYNOPSIS

     column [-tx] [-c columns] [-s sep] [file ...]

DESCRIPTION

     The column utility formats its input into multiple columns.  Rows are filled before columns.  Input is taken from file operands, or, by
     default, from the standard input.	Empty lines are ignored.

     The options are as follows:

     -c      Output is formatted for a display columns wide.

     -s      Specify a set of characters to be used to delimit columns for the -t option.

     -t      Determine the number of columns the input contains and create a table.  Columns are delimited with whitespace, by default, or with
	     the characters supplied using the -s option.  Useful for pretty-printing displays.

     -x      Fill columns before filling rows.

ENVIRONMENT

     The COLUMNS, LANG, LC_ALL and LC_CTYPE environment variables affect the execution of column as described in environ(7).

EXIT STATUS

     The column utility exits 0 on success, and >0 if an error occurs.

EXAMPLES

	   (printf "PERM LINKS OWNER GROUP SIZE MONTH DAY " ; 
	   printf "HH:MM/YEAR NAME
" ; 
	   ls -l | sed 1d) | column -t

SEE ALSO

     colrm(1), ls(1), paste(1), sort(1)

HISTORY

     The column command appeared in 4.3BSD-Reno.

BUGS

     Input lines are limited to LINE_MAX (2048) bytes in length.

BSD
								   July 29, 2004							       BSD
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