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Top Forums Shell Programming and Scripting Insert space in specific column among many columns Post 302839809 by awil on Saturday 3rd of August 2013 01:27:21 AM
Old 08-03-2013
Insert space in specific column among many columns

Hello,

I have some problem in inserting the space for the pairs of columns.

I have the input file :
Quote:
A,A,B,C,D,R
C,R,A,A,B,R
R,D,A,R,B,R
I used this code below in replacing it using space in specific column (replace space in each two columns)
Code:
sed -e "s/,/ /2" -e "s/,/ /3" inputfile

Output showed :
Quote:
A,A B,C D,R
C,R A,A B,R
R,D A,R B,R
However, I have many columns around 17,000 columns. I do not know how to use loop in this command. Could you please suggest me?

Thanks in advance Smilie
 

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COLRM(1)						    BSD General Commands Manual 						  COLRM(1)

NAME
colrm -- remove columns from a file SYNOPSIS
colrm [start [stop]] DESCRIPTION
The colrm utility removes selected columns from the lines of a file. A column is defined as a single character in a line. Input is read from the standard input. Output is written to the standard output. If only the start column is specified, columns numbered less than the start column will be written. If both start and stop columns are spec- ified, columns numbered less than the start column or greater than the stop column will be written. Column numbering starts with one, not zero. Tab characters increment the column count to the next multiple of eight. Backspace characters decrement the column count by one. ENVIRONMENT
The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of colrm as described in environ(7). EXIT STATUS
The colrm utility exits 0 on success, and >0 if an error occurs. SEE ALSO
awk(1), column(1), cut(1), paste(1) HISTORY
The colrm command appeared in 3.0BSD. BSD
August 4, 2004 BSD
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