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Top Forums UNIX for Dummies Questions & Answers Select and display sum depending upon even columns Post 302426186 by adityamitra on Tuesday 1st of June 2010 05:04:22 AM
Old 06-01-2010
Question Select and display sum depending upon even columns

i have a input as :
2898 | homy | pune | 7/4/09
1 :6298 | anna | chennai | 7/4/08
2 :3728 | gonna | kol | 8/2/10
3 :3987 | hogja | mumbai | 8/5/09
4 :6187 | galma | london | 9/5/01
5 :9167 | tamina | ny | 8/3/10
6 :3981 | dastan | bagh | 8/2/07
7 :4617 | vazir | ny

now,i want to get output depending upon following conditions :

1. select the input depending upon even columns (e.g. column no. 2, 4, 6..)

2. add the numbers displayed alongside the even columns (e.g :
2:6298 4:3987 6:9167)
output should be the sum of these....

please m in a hurry...!! thanx..!!
 

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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. column exits 0 on success, >0 if an error occurred. ENVIRONMENT
COLUMNS The environment variable COLUMNS is used to determine the size of the screen if no other information is available. EXAMPLES
(echo "PERM LINKS OWNER GROUP SIZE MONTH DAY 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. BSD
March 9, 2008 BSD
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