Linux, Hosting tips

Show files by size, biggest last:
ls -lSr

Show files in size, biggest first
ls -Ssh | head

Show top disk users in current dir.
du -s * | sort -k1,1rn | head

Show free space on mounted filesystems

df -h

Show free inodes on mounted filesystems

df -i

Show disks partitions sizes and types

fdisk -l

List all packages by installed size (Bytes) on rpm distros

rpm -q -a –qf ‘%10{SIZE}\t%{NAME}\n’ | sort -k1,1n