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Full Discussion: Replace column that matches specific pattern, with column data from another file
Top Forums Shell Programming and Scripting Replace column that matches specific pattern, with column data from another file Post 302641013 by prashali on Tuesday 15th of May 2012 03:06:47 PM
Old 05-15-2012
Thank you, it works! But it re-arranges the lines in file1.I'd like to keep the same order. Also, if there are multiple columns after column2( say column 3, column 4... column 8) in file1 that needs to be retained,how would the code have to be modified?
Your code o/p is now
Code:
ghi_3 foo2@a
ghi_3 soo1@a
abc_1 foo3@a
abc_1 soo1@a
def_2 foo2@a
def_2 soo2@a

---------- Post updated at 02:06 PM ---------- Previous update was at 01:12 PM ----------

Would you by any chance be able to modify the existing code to get that done?Also, would you pls. explain what you have here?
Last edited by Scrutinizer; 05-15-2012 at 03:13 PM.. Reason: code tags
 

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LEARN ABOUT NETBSD

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.

     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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