How to copy all files having the same name into another directory, with unique filenames, using bash-CodePudding

Say I have a directory structure like this:

├── Directory 1
│   ├── img.png
├── Directory 2
│   ├── imgx.png
├── Directory 3
│   ├── img.png
...
...
├── Directory n
│   ├── img.png
├── Images

I want to find and copy all the img.png files into the directory Images. Is there any way to:

Find all the img.png files (not all directories have this file)
Copy them into Images giving them unique filenames in the process (for example 2_img.png if it is being copied from Directory 2).

CodePudding user response：

You're looking for something like this:

for dir in 'Directory '*; do
  src=$dir/img.png
  dest=Images/${dir#* }_img.png
  if test -f "$src"; then
    echo cp "$src" "$dest"
  fi
done

Remove echo if the output looks good.