Size

Find files based on size

c bytes k kilobytes M megabytes G gigabytes w 2-byte words b 512-byte blocks

find / -a -size 10c	Exactly 10 bytes
find / -a -size +10k	More than 10 kilobytes
find / -a -size -10M	Less than 10 megabytes
find / -a -size 0c	Empty files (size 0 bytes).
find / -a -size +10M -size -50M	Between 10 and 50 megabytes.

Find large files:

find / -a -type f -size +100M -exec ls -lh {} \;

Find large directories:

find / -a -type d -size +1G -exec du -h --max-depth=1 {} \;

Finds files larger than the size of the current directory (using du to calculate total size):

find . -a -size $(du -sk * | awk '{print $1}')