Exercise: Create File With Hole

Create a file that claims to be 1 GB in size, but occupies only a couple of bytes physically.

$ ./hole /tmp/hole
$ ls -l /tmp/hole
-rw-rw-r--. 1 jfasch jfasch 1073741825 May  6 17:08 /tmp/hole
$ du -sh /tmp/hole
4.0K    /tmp/hole