UNIX环境高级编程学习之第六章系统数据文件和信息-取所有用户名和UID， GID

 UNIX环境高级编程学习之第六章系统数据文件和信息-取所有用户名和UID， GID

#include <stdio.h>#include <pwd.h>#include <stddef.h>int main(){struct passwd *ptr;setpwent();while((ptr = getpwent()) != NULL){printf("name = %-10s ", ptr->pw_name);printf("uid = %-6u ", ptr->pw_uid);printf("gid = %-6u /n", ptr->pw_gid);}endpwent();return 0;}