I would like to delete unnecessary files, logs, cache, etc ... because I have only a simple hosted website and it has been consuming disk space for no reason
Filesystem Size Used Avail Use% Mounted on
/dev/simfs 30G 23G 7.3G 76% /
devtmpfs 3.0G 0 3.0G 0% /dev
tmpfs 3.0G 0 3.0G 0% /dev/shm
tmpfs 3.0G 176K 3.0G 1% /run
tmpfs 3.0G 0 3.0G 0% /sys/fs/cgroup
tmpfs 615M 0 615M 0% /run/user/0