graham@autrecourt:~$ sudo strace -p 5731
Password:
Process 5731 attached - interrupt to quit
read(4, "", 1024)                       = 0
select(5, [0 4], [], NULL, NULL)        = 1 (in [4])
read(4, "", 1024)                       = 0
select(5, [0 4], [], NULL, NULL)        = 1 (in [4])
read(4, "", 1024)                       = 0
select(5, [0 4], [], NULL, NULL)        = 1 (in [4])
read(4, "", 1024)                       = 0
select(5, [0 4], [], NULL, NULL)        = 1 (in [4])
read(4, "", 1024)                       = 0
select(5, [0 4], [], NULL, NULL)        = 1 (in [4])
read(4, "", 1024)                       = 0
select(5, [0 4], [], NULL, NULL)        = 1 (in [4])
read(4, "", 1024)                       = 0
select(5, [0 4], [], NULL, NULL)        = 1 (in [4])
read(4, "", 1024)                       = 0
select(5, [0 4], [], NULL, NULL)        = 1 (in [4])
read(4, "", 1024)                       = 0
select(5, [0 4], [], NULL, NULL)        = 1 (in [4])
read(4, "", 1024)                       = 0