Find Files by Size on Linux

To find files based on the file size, pass the -size parameter along with the size criteria. 

You can use the following suffixes to specify the file size:

• b: 512-byte blocks (default)
• c: bytes
• w: two-byte words
• k: Kilobytes
• M: Megabytes
• G: Gigabytes

The following command will find all files of exactly 88 bytes inside the / directory:

find / -type f -size 88c

Find files larger than 88M:

find / -type f -size +88M

Find files smaller than 88G

find / -type f -size -88G