Change all files and folders permissions of a directory to 644/755

Question

How would I change all files to 644 and all folders to 755 using chmod from the linux command prompt? (Terminal)

Answer 1

This worked for me:

find /A -type d -exec chmod 0755 {} \;
find /A -type f -exec chmod 0644 {} \;

Answer 2

Easiest for me to remember is two operations:

chmod -R 644 dirName
chmod -R +X dirName

The +X only affects directories.