Copy only files with certain extension while renaming each file according to the parent folder

Question

I have several directories:

├── folder1.x
│   ├── dsferwe
│   ├── ewrwr342
│   ├── analysis
│   ├── fdsds
│   ├── vcxvcxz
│   ├── 324322
│   ├── export.asc
│   ├── f_random_subfolder.xf
│   │   ├── -.method
│   │   ├── desktop.ini
│   │   ├── lock.file
│   │   └── submethods.xml
│   └── Sync
├── random_folder4.x
│   ├── dsferwe
│   ├── ewrwr342
│   ├── analysis
│   ├── fdsds
│   ├── vcxvcxz
│   ├── 324322
│   ├── export.asc
│   ├── 22random_subfolder.xf
│   │   ├── -.method
│   │   ├── desktop.ini
│   │   ├── lock.file
│   │   └── submethods.xml
│   └── Sync
├── X93430.x
│   ├── dsferwe
│   ├── ewrwr342
│   ├── analysis
│   ├── fdsds
│   ├── vcxvcxz
│   ├── 324322
│   ├── export.asc
│   ├── random_subfolder222.xf
│   │   ├── -.method
│   │   ├── desktop.ini
│   │   ├── lock.file
│   │   └── submethods.xml
│   └── Sync

Each directory contains an export.asc file.

I want to copy all export.asc files to a new directory while renaming to have the same name as their parent directory. Therefore, in the end according to the example above I will have these files in a new folder:

folder1.x.asc
random_folder4.x.asc
X93430.x.asc

How can I achieve this?

RELATED topics I have already followed but haven't had any success

• Rename files based on directory names
• how to rename files while copying?

Answer 1

You can do it with find -exec sh -c ...

find . -name export.asc \
-exec sh -c 'cp "$1" /path/to/new/folder/"$(basename "$(dirname "$1")")".asc' sh {} \;

• "$(basename "$(dirname "$1")")" will be the name of the folder the file resides in.

Add -i to cp if you want to make sure that no files are overwritten without prior interaction.