Linux command ls -s question

ls -s tells you how many blocks are in use.

The disk is not recorded in bytes, but in blocks. If you write a 1KB block, the disk will have four blocks, or 4KB, even if it is 3.3KB.

Jung Doo-sik explained it well. In addition, ls -sk shows the allocated size in kilobyte units.

Additionally, if ls -lh is used, KB and MB are attached to show.