How to copy files recursively, rename them but keep the same extension in Bash?

Question

I have a folder with tens of thousands of different file types. Id like to copy them all to a new folder (Copy1) but also rename them all to $RANDOM but keep the extension intact. I realize I can write a line specifying which extension to find and how to name it, but there is got to be a way to do it dynamically, because there are at least 100 file types and may be more in the future.

I have the following so far:

find ./ -name '*.*' -type f -exec bash -c 'cp "$1" "${1/\/123_//_$RANDOM}"' -- {} \;

but that puts the random number after the extension, and also it puts the all in the same folder. I cant figure out how to do the following 2 things:

1 - Keep all paths intact, but in a new root folder (Copy1)

2 - How to have name be $RANDOM.extension, instead of .extension.$RANDOM

PS - by $RANDOM i mean actual randomly generated number. I am interested in keeping folder structure, so we are dealing with a few hundred files at most per directory, but all directories/files need to be renamed to $RANDOM. Another way to look at what I need to do. Copy all contents or Folder1 with all subdirectories and files to Folder2 (where Fodler2 is a $RANDOM name), then rename all folders and files to random names but keep all extensions.

EDIT: Ok i figured out how to rename and keep extension. But I have a problem where its dumping all of the files into the root directory where script is run from. How do I keep them in their respective folders? Command Im using is:

find ./ -name '*.*' -type f -exec bash -c 'mv "$1" $RANDOM.${1##*.}' -- {} \;

Thanks!

Answer 1

Ok i figured out how to rename and keep extension. But I have a problem where its dumping all of the files into the root directory where script is run from. How do I keep them in their respective folders? Command Im using is:

find ./ -name '*.*' -type f -exec bash -c 'mv "$1" $RANDOM.${1##*.}' -- {} \;

Change your command to:

PATH=/bin:/usr/bin find . -name '*.*' -type f -execdir bash -c 'mv "$1" $RANDOM.${1##*.}' -- {} \;

Or alternatively using uuids instead of random numbers:

PATH=/bin:/usr/bin find . -name '*.*' -type f -execdir bash -c 'mv "$1" $(uuidgen).${1##*.}' -- {} \;

Answer 2

Here's what I came up with :

i=1
random="whatever"
find . -name "*.*" -type f | while read f
do
    newbase=${f/*./$random$i.} //added counter to filename
    cp $f /Path/Name/"$newbase"
    ((i++))
done

I had to add a counter to random (i), otherwise, if the extensions are similar, your files would overwrite themselves when copied.

In your new folder, your files should look like this :

whatever1.txt
whatever2.txt
etc etc

I hope this is what you were looking for.