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Top Forums UNIX for Dummies Questions & Answers append a column by concatenating other columns Post 302592062 by mary271 on Sunday 22nd of January 2012 03:23:04 PM
Old 01-22-2012
append a column by concatenating other columns

Hi
In a tab delimited file how can I add a column that have values concatenated from all columns.
For example
input.txt
Code:
test1	test2	test3
zz2	mm	uu
pp3	yy	kk
ss2	tt	ll
zz3	mm	uu
pp23	yy	kk
ss3	tt	ll
11e	22	44
33c	22	99

output.txt

Code:
test1	test2	test3  reslt
zz2	mm	uu    zz2_mm_uu
pp3	yy	kk    pp3_yy_kk
ss2	tt	ll     ss2_tt_ll
zz3	mm	uu   zz3_mm_uu
pp23	yy	kk   pp23_yy_kk
11e	22	44   11e_22_44

Thanks
 

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

NAME
column -- columnate lists SYNOPSIS
column [-entx] [-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 unless the -e option is used. 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. -e Do not ignore empty lines. 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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