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Top Forums Shell Programming and Scripting sed to replace a line with multi lines from a var Post 302702665 by bblondin on Tuesday 18th of September 2012 04:31:50 PM
Old 09-18-2012
[SOLVED] sed to replace a line with multi lines from a var

I am trying to find a line in a file ("Replace_Flag") and replace it with a variable which hold a multi lined file.

Code:
myVar=`cat myfile`
sed -e 's/Replace_Flag/'$myVar'/' /pathto/test.file

myfile:
cat
dog
boy
girl
mouse
house

test.file:
football
hockey
Replace_Flag
baseball

What I'd like to see is:
football
hockey
cat
dog
boy
girl
mouse
house
baseball

The above command works if "myVar" is a signal line. example:
Code:
 myVar="this is a line"

or a line with the new line deliminators
Code:
 myVar="line1\nline2\nline3"

I also tried reformating the variable.
Code:
 myNEWVar=`cat $myVar | tr '\n' ' '`

thus making it look like this: cat dog boy girl mouse house
however that did not work either.


any thoughts or suggestions would be greatly appreciated, thanks
 

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REPLACE(1)						       MySQL Database System							REPLACE(1)

NAME
replace - a string-replacement utility SYNOPSIS
replace arguments DESCRIPTION
The replace utility program changes strings in place in files or on the standard input. Invoke replace in one of the following ways: shell> replace from to [from to] ... -- file_name [file_name] ... shell> replace from to [from to] ... < file_name from represents a string to look for and to represents its replacement. There can be one or more pairs of strings. Use the -- option to indicate where the string-replacement list ends and the file names begin. In this case, any file named on the command line is modified in place, so you may want to make a copy of the original before converting it. replace prints a message indicating which of the input files it actually modifies. If the -- option is not given, replace reads the standard input and writes to the standard output. replace uses a finite state machine to match longer strings first. It can be used to swap strings. For example, the following command swaps a and b in the given files, file1 and file2: shell> replace a b b a -- file1 file2 ... The replace program is used by msql2mysql. See msql2mysql(1). replace supports the following options. o -?, -I Display a help message and exit. o -#debug_options Enable debugging. o -s Silent mode. Print less information what the program does. o -v Verbose mode. Print more information about what the program does. o -V Display version information and exit. COPYRIGHT
Copyright (C) 1997, 2014, Oracle and/or its affiliates. All rights reserved. This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License. This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see http://www.gnu.org/licenses/. SEE ALSO
For more information, please refer to the MySQL Reference Manual, which may already be installed locally and which is also available online at http://dev.mysql.com/doc/. AUTHOR
Oracle Corporation (http://dev.mysql.com/). MySQL 5.5 01/30/2014 REPLACE(1)
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