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Top Forums Shell Programming and Scripting Simple Shell Script! Almost Done! Post 302693845 by ShellsNewb on Wednesday 29th of August 2012 10:05:59 PM
Old 08-29-2012
Simple Shell Script! Almost Done!

Hello, I am creating a shell script and I am almost done. I have certain things I want done in the shell but don't know how to finish it properly.



Here is what I am aiming to do. I am aiming to have a shell that takes at least 3 parameters. The first two are the two words to replace (the first being the word replaced and the second being the word to replace it with) and then the third (and beyond) parameter, are all the files to make the changes to.

Here is what I have so far but its not working correctly and giving me incorrect output when using special characters such as changing 'Unix' to 'U N I X'



Code:
#!/bin/sh

replace=$1
shift
with=$1
shift
for file in $*
do
   echo $file

newreplace=`echo "$replace" | sed -e "s/$replace/&/g"`

echo $newreplace

sed "s/$newreplace/$with/g" "$file" > "$file.updated"
mv "$file.updated" "$file"
done

 

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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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