Rename files with a suffix with name of its folder

Question

Each folder has a .mkv or .avi file.

E.g:

Sommerferien201308/eins.avi Sommerferien201309/eins.mkv Herbst201401/film.avi Herbst201402/krz.mkv

Renaming to:

Sommerferien201308/Sommerferien201308.avi Sommerferien201309/Sommerferien201309.mkv Herbst201401/Herbst201401.avi Herbst201402/Herbst201402.mkv

How can I rename the filename to the name of its folder? Of course every foldername is unique. And too much to do it manually for each file/folder.

I Would try with find.

find . -type d -name "" -exec cd "" && mv {} \;

But i dont know how to select the folder name and how to make the .avi or .mkv selection and how to store the selected folder name..

One folder is named Sommerferien2013 and the Videofile eins.mkv I have many of them and sometimes there is .mkv or .avi or whatever. I would start with a find command? The output would be Sommerferien2013\Sommerferien2013.mkv — arphex
– arphex, Commented Mar 5, 2017 at 10:12
Imagine you're someone else and you come across this question. Would you say all the necessary information is available to give a good answer? — Biffen
– Biffen, Commented Mar 5, 2017 at 10:23
Okay thank you for explanation i tried to make it more precise. Please give feedback if the question is not better understandable — arphex
– arphex, Commented Mar 5, 2017 at 10:27
It's much better now. However, one thing remains unclear: Where does recursion fit in? — Biffen
– Biffen, Commented Mar 5, 2017 at 10:29
That was my "idea". Because the script has to look in the folder if there is a mkv or avi file and then rename with mv. I thought when there are many of this folders then this will be done recursively? — arphex
– arphex, Commented Mar 5, 2017 at 10:33

anubhava · Accepted Answer · 2017-03-05 11:04:55Z

1

You can use this find command from base folder of your folders that contain *.avi and *.mkv files:

while IFS= read -rd '' f; do ( IFS=/ arr=($f) if [[ $f != *"/${arr[len-2]}"* ]]; then len=${#arr[@]} ext="${arr[len-1]##*.}" cd "$(dirname "$f")" && echo mv "${arr[len-1]}" "${arr[len-2]}.$ext" fi ) done < <(find . \( -name '*.mkv' -o -name '*.avi' \) -print0)

When you're satisfied with the output remove echo before mv.

edited Mar 5, 2017 at 11:04

answered Mar 5, 2017 at 10:54

anubhava

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6 Comments

arphex Over a year ago

Thank you. How to use it? I create a .sh file in the folder containing all other folders? and paste it in the .sh file? I tried it and then executed $sh rename.sh. Following output came rename.sh: line 9: syntax error near unexpected token <' rename.sh: line 9: done < <(find . $ -name '*.mkv' -o -name '*.avi' $ -print0)'

arphex Over a year ago

Great! That gives me output when i execute it. what is the -o switch in the find command? If i intend to extend with .mp4 ? I dont find -o in the manpages of my OS. Edit: i found it. An OR Expression. :)

arphex Over a year ago

i removed the echo and i got this error mv: cannot stat sommer.mkv': No such file or directory` what can i do?

anubhava Over a year ago

Look at the bash -x (debug mode) output. cd "$(dirname "$f")" takes care of changing directory into each directory before running mv command.

arphex Over a year ago

hi @anubhava, why did you remove the post how to call the script in a non bash shell?

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