@Flaviano,

I’m glad you found the information helpful! Files without extensions, also known as “extensionless files,” can indeed be a unique approach, but the operating system might not recognize the file type automatically based on the file name.

Therefore, you need to manually set each file type with the appropriate program or use the following script that will add the extension ".txt" to several files that don’t have an extension in a directory.

for file in /path/to/directory/*; do
    mv "$file" "$file.txt"
done

Very useful!

However, I would like a different approach. What about files that don’t have an extension? I have a lot of them because I think that file extensions are ugly.