set chmod only for directories code example
Example 1: chmod just directories
find /path/to/base/dir -type d -exec chmod 755 {} +Example 2: chmod just directories
find /path/to/base/dir -type f -exec chmod 644 {} +find /path/to/base/dir -type d -exec chmod 755 {} +find /path/to/base/dir -type f -exec chmod 644 {} +