Few people think more than two or three times a year. I've made an
international reputation for myself by thinking once or twice a week.
If we knew what it was we were doing, it would not be called research,
would it?
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traceroute
跟踪路由
traceroute www.sohu.com
linux
tracecert
跟踪路由
tracert www.sohu.com
Windows
ipcs
provide info on ipc facilities
ipc
linux
ipcrm
remove semaphore...
ipcrm -s xxxx
Linux