How to rename files without changing extension in Linux 102221.pdf to 102221_name.pdf

Question

How to rename files without changing extension in Linux \\

102221.pdf to 102221_name.pdf

Answer 1

This is what you want I think:

for x in *; do mv "$x" "${x%.*}_name.${x##*.}"; done

• ${x%.*} will give the name of the file without extention
• ${x##*.} will extract the extentions