To chmod recursively, meaning directories and all directories within, you’d use the -R option:
chmod -R 755
From the chmod man page:
-R, –recursive
change files and directories recursively
This is all simple enough, but for some reason I always forget it. So here it is.
You can also use find to CHMOD files and directories recursively.
Find files and change permissions to 644:
find . -type f -exec chmod 644 {} \;
Find directories and change permissions to 755:
find . -type d -exec chmod 755 {} \;
