文件批量重命名

for file in *.png; do
    mv "$file" "${file%.png}_3.6.14.png"
done

 for file in `find -name "*.old"` ; do mv ${file} ${file%.old}; done;

使用find -exec

find -name "*.pdf" -exec mv {} {}.old ;

参考:

https://stackoverflow.com/questions/24592342/add-suffix-to-all-files-in-the-directory-with-an-extension