How to add .xml extension to all files in a folder in Unix/Linux
On the shell, you can do this:
for file in *; do if [ -f ${file} ]; then mv ${file} ${file}.xml fidoneEdit
To do this recursively on all subdirectories, you should use find:
for file in $(find -type f); do mv ${file} ${file}.xmldoneOn the other hand, if you're going to do anything more complex than this, you probably shouldn't use shell scripts.
Better still
Use the comment provided by Jonathan Leffler below:
find . -type f -exec mv {} {}.xml ';'