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Top Forums Shell Programming and Scripting Return first two columns if match found among two files Post 302918607 by vamsikrishna928 on Wednesday 24th of September 2014 11:36:20 AM
Old 09-24-2014
Return first two columns if match found among two files

Hi,

I have FileA with one column.
File B with 15 columns separated by comma delimiter.

I need to compare the FILEA value with all 15 columns of FILEB... if matches, need to return the 1st, 2nd column values of FILEB.

How to achieve this through shell script? Thanks in advance.
 

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

NAME
column -- columnate lists SYNOPSIS
column [-ntx] [-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. -n By default, the column command will merge multiple adjacent delimiters into a single delimiter when using the -t option; this option disables that behavior. This option is a Debian GNU/Linux extension. 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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