Filesystem      Size  Used Avail Use% Mounted on
udev            3.9G     0  3.9G   0% /dev
tmpfs           798M   81M  717M  11% /run
/dev/sdb2        19G  5.2G   13G  29% /
tmpfs           3.9G     0  3.9G   0% /dev/shm
tmpfs           5.0M     0  5.0M   0% /run/lock
tmpfs           3.9G     0  3.9G   0% /sys/fs/cgroup
/dev/sda         30G   21G  7.7G  73% /var/lib/mysql
/dev/sdc        197G   43G  145G  23% /srv
tmpfs           798M     0  798M   0% /run/user/0