> $ stat /etc/ssl/certs/smtp.pem > File: `/etc/ssl/certs/smtp.pem' > Size: 4922 Blocks: 16 IO Block: 131072 regular file > Device: 304h/772d Inode: 28966 Links: 1 > Access: (0400/-r--------) Uid: ( 8/ mail) Gid: ( 102/Debian-exim)