make
$ sudo ./opensnoop
PID COMM FD ERR PATH
696 irqbalance 6 0 /proc/interrupts
696 irqbalance 6 0 /proc/stat
696 irqbalance 6 0 /proc/irq/20/smp_affinity
696 irqbalance 6 0 /proc/irq/0/smp_affinity
696 irqbalance 6 0 /proc/irq/1/smp_affinity
696 irqbalance 6 0 /proc/irq/4/smp_affinity
696 irqbalance 6 0 /proc/irq/8/smp_affinity
696 irqbalance 6 0 /proc/irq/12/smp_affinity
696 irqbalance 6 0 /proc/irq/14/smp_affinity
696 irqbalance 6 0 /proc/irq/15/smp_affinity
35608 opensnoop 25 0 /etc/localtime