Sed Assistance

[jaysunn]

Hello,

I have a situation where I need to remove the text "radio28" including the quotes from many shell scripts with the .sh extension. I have been learning SED and AWK from this site and other references. My goal is to automate this in a bash shell script on RHEL4.

The files are located in /usr/local/bin

Currently my attempt at this worked. However I used redirection to a tmp folder and I lost all my file attributes. I know there is a way to use the -i flag. However I have not been successful.

Here is what I have so far:

#! /bin/bash

for x in `ls /usr/local/bin/` ; do


 sed 's/"radio28"/ /g' /usr/local/bin/$x > /usr/local/bin/tmp/$x

done

Is there a way to run this from inside of /usr/local/bin without wrecking the attributes. Also without the redirection.

Your help is appreciated.

Jaysunn

[lomcevak]

What do you mean not successful with the -i option? What happened?

The command should look like:

sed -i 's/"radio28"/ /g' /usr/local/bin/$x

[jaysunn]

When adding that line to my script:

#! /bin/bash

for x in `ls /usr/local/bin/` ; do


sed -i 's/"radio28"/ /g' /usr/local/bin/$x

done

When executed I receive this Message. "This may be related to me testing on MAC OSX Terminal". I get the below error for every file sed tries to input.

sed: 1: "/usr/local/bin/check_gr ...": extra characters at the end of l command

Thanks for the reply.

Jaysunn

[lomcevak]

If you're testing on OSX and not Linux then that's the problem. The -i option in OSX sed requires a value. You have to test this on Linux.

Here's a link to OSX sed manpage.
Mac OS X Manual Page For sed(1)

[ghostdog74]

#! /bin/bash

for x in `ls /usr/local/bin/` ; do


 sed 's/"radio28"/ /g' /usr/local/bin/$x > /usr/local/bin/tmp/$x

done

use shell expansion

for x in /usr/local/bin/*

[vonbiber]

I need to remove the text "radio28" including the quotes from many shell scripts with the .sh extension.
The files are located in /usr/local/bin
[/CODE]

Is there a way to run this from inside of /usr/local/bin without wrecking the attributes. Also without the redirection.

Jaysunn

basically, you need to remove "radio28" from shell scripts that have an .sh extension
and are located in /usr/local/bin and are executable
Right?
in that case I would do this

cd /usr/local/bin
for f in *.sh
do
if [ $(grep -c '"radio28"') -gt 0 ]; then
sed 's/"radio28"//g' $f > __f && mv __f $f && chmod 755 $f
fi
done

note:
the grep is for doing the job only for the files that actually have that string
chmod 755 should make the script executable
and this is done in place (no need to use /tmp)
of course you must have the right permissions to write in /usr/local/bin