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Full Discussion: Adding a line before
Top Forums UNIX for Dummies Questions & Answers Adding a line before Post 302879686 by sa@@ on Saturday 14th of December 2013 12:39:49 AM
Old 12-14-2013
Quote:
Originally Posted by Scrutinizer
You could try:
Code:
awk '$3=="assumption"{$0=$0 ORS $0; sub($3, "predictive")}1' file

But you would also need to adjust the ID in the last column, no?

Perhaps sed:
Code:
sed 's/\(.*\)assumption\(.*\)\(ID=[^.]*\)[^;]*\(;.*\)/\1predictive\2\3\4\
&/' file

I tried both the codes.
The first awk code did makethe necessary changes in 3rd column but didnt do the ID change.

As per your advice the 2nd sed command will help in making the changes in ID.
However the 2nd sed command just replaced the entire line having assumption in 3rd column with a line having predictive in 3rd column

I wanted to add a line which has the same contents as line of assumption but change in ID value.
(ddint want to remove the already existing line. )
I hope its not confusing.

Thanks a lot though.
 

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LEARN ABOUT LINUX

colrm

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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