[SOLVED] sed (?) insert string between 2 others

czezz · 05-21-2010, 07:26 AM

I have a file like this:

Code:

/opt/local/some/dir/
blablablabiugfyugf
"/opt/local/some/dir/file.txt"
"/opt/local/someother/dir/file.bin"
/opt/local/some/dir/file.txt
plaplaplllalalalal
/opt/local/someother/dir/file.bin
MYBEST_DIR="/opt/local/some/dir/"
blablabla
sometimes my favorite path is in the middle of the line /opt/local/somedifrent/dir/file.txt
mmmmrtatatatata
/opt/local/someotherX/dir sometimes is at beginning or...
"opt/local/someother/dir" in this funny sign " <- which i dont know how to call it ;)

What I need to do, is to insert between /opt/ and local/ string NEW/Path/
I was tring with "sed" but it didnt work to me :/
Can anyone help me with this please ?

MTK358 · 05-21-2010, 07:28 AM

I don't understand what you want to do.

grail · 05-21-2010, 07:33 AM

Maybe if you showed us a before and after picture and what you have tried we can show you where the problem is?

PMP · 05-21-2010, 07:34 AM

Code:

echo '/opt/local/some/local/dir/' | sed 's#.*?\(/local.*\)#/opt/path\1#'

czezz · 05-21-2010, 07:59 AM

PMP its almost this what I need but when I replace path with ur code it also erase beginning of the line.
Eg. MYBEST_DIR= will be erased. Same as every sign "

PMP · 05-21-2010, 08:03 AM

My Mistake !! Modified Verison.

Code:

echo '/opt/local/some/local/dir/' | sed 's#/opt\(/local.*\)#/opt/path\1#'

David the H. · 05-21-2010, 08:04 AM

Even easier, just rewrite the entire substring:

Code:

sed 's|/opt/local/|/opt/new/path/local/|'

Note that you can use any character in sed's substitution pattern, not just the traditional s///, allowing you to work on file paths. In this case I used s||| (and PMP above used s###).

PMP · 05-21-2010, 08:12 AM

Quote:

Originally Posted by David the H.

Even easier, just rewrite the entire substring:

Code:

sed 's|/opt/local/|/opt/new/path/local/|'

Note that you can use any character in sed's substitution pattern, not just the traditional s///, allowing you to work on file paths. In this case I used s||| (and PMP above used s###).

Right !! I made it complicated !!

czezz · 05-21-2010, 10:46 AM

Awesome!

)))
Many thanks for help.

btw. I have one more... lets say "half-problem":
What im going to do now, is to use this command on all files on /opt.
So I have written a simple loop:

Code:

#!/bin/bash

files="/opt/*"
for i in $files
do
  echo "parsing file $i"
  sed 's|/opt/local|/opt/NEW_PATH/local|' $i > $i.out
  mv  $i.out $i
done

This works fine but I need to re-run script in each dir on /opt file system.

Is there any trick I can use to execute this loop on every sub-dir on /opt file system ?

Of course I can always set: files="/opt/*/*/*" but I must know exactelly count of sub-dirs.

MTK358 · 05-21-2010, 11:01 AM

So you want to recursively get all the dirs in /opt?

Do you want to include normal files in the results or just directories?

grail · 05-21-2010, 11:13 AM

Firstly, just use 'sed -i' then the 'mv' becomes redundant.

Then use a while/read loop:

Code:

while read file
do
    if grep -q "/opt/local" $file
    then
        sed -i 's|/opt/local|/opt/NEW_PATH/local|' $file
    fi
done< <(find /opt -type f)