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1.
Similarly, group operations are possible by using the addgroup() and deletegroup() methods in the UserManager object.
类似地,组操作也可以使用 UserManager 对象中的 addgroup() 和 deletegroup() 方法来完成。
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2.
Most standard UNIX systems have adduser (or useradd) and addgroup (or groupadd) commands available to the administrator.
大多数标准的UNIX系统都为管理员提供了adduser(或useradd)和addgroup(或groupadd)命令。