chmod récursif
-R, --recursive
chmod -R 755 /path/to/directory
Wicked Wolf
-R, --recursive
chmod -R 755 /path/to/directorychmod -R u=rwx,go=rx /tofile_path
find . -name "*.sh" -exec chmod +x {} \;shopt -s globstar
for f in **/*.t1; do
mv "$f" "${f%.t1}.t2"
done