open("////////usr//////////////////////////////hund", O_RDONLY) = 3
open("///usr/katze", O_WRONLY) = 4
open("//////usr//////////////////////maus", O_RDWR) = 7
open("/usr/elefant", O_RDONLY) = 8
read(3, ""..., 4096)                   = 0
read(3, "Wuff"..., 4096)                   = 4
write(4, "Miau!"..., 4096)                   = 5
read(3, "grrrr"..., 4096)                   = 5
write(7, "piep"..., 4096)                   = 4
