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my_open3(\*STDIN,'>&STDOUT','>&STDOUT',"ping 10.0.0.1"); my_open3(\*STDIN,'>&STDOUT','>&STDOUT',"ping 10.0.0.100"); my_open3(\*STDIN,'>&STDOUT','>&STDOUT',"ping 10.0.0.2");
my_open3(\*STDIN,'>&STDOUT','>&STDOUT','ping', '10.0.0.2');