This question already has an answer here:
Can somebody explain, why a standard folder has always 4kB and some special directories have more or less?
- /dev 3280B, 0 Blocks, 16 Links
- /etc 12288B, 24 Blocks, 119 Links
- /proc 0B, 0 Blocks, 85 Links
- /home 4096B, 8 Blocks, 4 Links