一个进程的命令行保存在文件/proc/pid/cmdline中,参数之间是字节0分隔。下面的小程序举例说明如何去读这个文件。 #include <iostream>#include <fstream>int main(int argc, char* argv[]) ...{ if(argc != 2) ...{ printf("usage: %s pid ", argv[0]); exit(0); } std::string path(argv[1]); path = "/proc/" + path + "/cmdline"; std::ifstream fin(path.c_str()); if(!fin) ...{ std::cout << "Open /proc/" << argv[1] << "/cmdline failed! "; exit(-1); } std::string s; while (getline(fin, s, '/0')) { std::cout << s << std::endl; }}