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Replace last 2 folder directory string with sed

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# 1  
Old 04-22-2010
Replace last 2 folder directory string with sed
Hi guys,

I´m trying to replace the 2 last folders name in a list of directories with a new string, but I´m don´t know which regex to apply.

Directories list:
Code:
C/my user/documents/games & music
C/my user/documents/photos 09-24-2008
C/my user/settings/config ?1_2

* The last folder may have characters such as -, _, & or ?

Example with the firt line
Code:
sed 's/\/documents\/games & music/\/final folder/g' infile

Desired result is as follow:
Code:
C/my user/final folder
C/my user/final folder
C/my user/final folder

Any help would be very appreciated.
# 2  
Old 04-22-2010
use

Code:
sed 's/\(.*\/\)[^/]*$/\1final folder/g' filename


cheers,
Devaraj Takhellambam
# 3  
Old 04-22-2010
you can try this..but Smilie
Code:
awk  -F/ 'BEGIN{OFS="/"}{ $NF="final folder";print }' file_name 
C/my user/documents/final folder
C/my user/documents/final folder
C/my user/settings/final folder
final folder
final folder
final folder

Why the last three line coming here???Smilie
# 4  
Old 04-22-2010
Many thanks devtakh,

It works partially for me, I´m not sure if because the shell I´m using.

The regex you gave me looks like matches only the last folder name, I would like the regex matches the last 2 folder level.

I mean:

The regex you gave me matches this:
Code:
C/my user/documents/games & music

I would like the regex match last 2 folders as follow:
Code:
C/my user/documents/games & music

Thanks in advance again.
# 5  
Old 04-22-2010
Ok.

Code:
sed 's/\(.*\/\).*\/[^/]*$/\1final folder/g' filename

# 6  
Old 04-22-2010
Many thanks devtakh, it works. Many thanks posix either.

Sorry, my last question regarding this, I didn´t realize about this part before.

I can see your script works, but now I found that one or two directories contain only 2 subfolder levels.

How to insert an if statement within sed to match the last 2 folders if the entire string contains 3 subfolders and match only the very last folder if entire string cotainds only 2 subfolders?

I mean:

Code:
C/my user/documents/photos 09-24-2008 (If has 3 subfolders)
then match desired
C/my user/documents/photos 09-24-2008 (match last 2 subfolders)

Code:
C/my user/travels (If has 2 subfolders)
then match desired 
C/my user/travels (match only last subfolder)

Thanks again for any help.
# 7  
Old 04-22-2010
Code:
sed 's/\([^/]*\/[^/]*\/\).*$/\1final folder/g' file
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