How do I rename files in sub directories?

Question

Is there any way of batch renaming files in sub directories?

For example:

Rename *.html to *.htm in a folder which has directories

Answer 1

In python

import os

target_dir = "."

for path, dirs, files in os.walk(target_dir):
    for file in files:
        filename, ext = os.path.splitext(file)
        new_file = filename + ".htm"

        if ext == '.html':
            old_filepath = os.path.join(path, file)
            new_filepath = os.path.join(path, new_file)
            os.rename(old_filepath, new_filepath)

Answer 2

On Unix, you can use rnm:

rnm -rs '/\.html$/.htm/' -fo -dp -1 *

Or

rnm -ns '/n/.htm' -ss '\.html$' -fo -dp -1 *

Explanation:

1. -ns : name string (new name). /n/ is a name string rule that expands to the filename without the extension.
2. -ss : search string (regex). Searches for files with match.
3. -rs : replace string of the form /search_regex/replace_part/modifier
4. -fo : file only mode
5. -dp : depth of directory (-1 means unlimited).

Answer 3

Windows command prompt: (If inside a batch file, change %x to %%x)

for /r %x in (*.html) do ren "%x" *.htm

This also works for renaming the middle of the files

for /r %x in (website*.html) do ren "%x" site*.htm

Answer 4

AWK on Linux. For the first directory this is your answer... Extrapolate by recursively calling awk on dir_path perhaps by writing another awk which writes this exact awk below... and so on.

ls dir_path/. | awk -F"." '{print "mv file_name/"$0" dir_path/"$1".new_extension"}' |csh

Answer 5

I'm sure there's a more elegant way, but here's the first thing that popped in my head:

for f in $(find . -type f -name '*.html'); do 
    mv $f $(echo "$f" | sed 's/html$/htm/')
done

Answer 6

Total Commander which is a file manager app, lets you list & select all files within its dir & sub-dirs, then you can run any of the total commander operations on them. one of them being: multi-rename the selected files.