Rename recursively repository and file names by replacing a pattern by another

I'd like to recursively rename all repository and file names under a specific directory that contain a given pattern.

I think I found a potential solution here with the following command:

find /your/target/path/ -execdir rename 's/special/regular/' '{}' \+

However it seems like I don't have the right rename command.

I installed Perl Rename package but I still don't have the Perl based rename command available. What can I do to be able to use this command?

Is there an alternative solution to this rename solution?

Let's say I have the following repositories and files:

BOOK1/
BOOK1/BOOK1_summary.txt
BOOK1/BOOK1_chapter1/BOOK1_chapter1.txt

I'd like to rename all occurrences of BOOK1 by BOOK-01 in repository and file names:

BOOK1-01/
BOOK1-01/BOOK1-01_summary.txt
BOOK1-01/BOOK1-01_chapter1/BOOK1-01_chapter1.txt

Solution

You could use the rename PERL utility which could be downloaded from this link.

find  BOOK1 -depth -exec rename -n 's/^(.*)(BOOK1)(.*)$/$1BOOK1-01$3/' {} \;

Dry-run output

rename(BOOK1/BOOK1_summary.txt, BOOK1/BOOK1-01_summary.txt)
rename(BOOK1/BOOK1_chapter1/BOOK1_chapter1.txt, BOOK1/BOOK1_chapter1/BOOK1-01_chapter1.txt)
rename(BOOK1/BOOK1_chapter1, BOOK1/BOOK1-01_chapter1)
rename(BOOK1, BOOK1-01)

Remove the -n option from rename once you verify the dry-run result..

Actual Output

 ls -R BOOK1-01/ # Used a recursive listing here.
BOOK1-01/:
BOOK1-01_chapter1  BOOK1-01_summary.txt

BOOK1-01/BOOK1-01_chapter1:
BOOK1-01_chapter1.txt

_{Note : The -depth option with find is the key here. The find manpage says it process each directory's contents before the directory itself.}