如何自动协调/ etc / group和/ etc / gshadow

运行grpck检查组，我看到这些错误：

 'twinky' is a member of the 'foo' group in /etc/group but not in /etc/gshadow
 'dipsy' is a member of the 'foo' group in /etc/group but not in /etc/gshadow
 'laalaa' is a member of the 'foo' group in /etc/group but not in /etc/gshadow
 'po' is a member of the 'foo' group in /etc/group but not in /etc/gshadow
 'noonoo' is a member of the 'foo' group in /etc/group but not in /etc/gshadow
 'dipsy' is a member of the 'foo' group in /etc/group but not in /etc/gshadow
 ...

...还有很多。我不确定这是怎么发生的，我想清理一下。我知道我可以手动编辑/etc/gshadow，但是我宁愿让OS来做，以防止输入错误和体力劳动。

有什么可以自动调和小组到gshadow的东西吗？也许像（弥补）：

# grpfix foo

我已经尝试过各种与组相关的命令，并在Google周围搜索，但到目前为止，我还没有找到答案。

一个人有我以前错过的答案：

grpconv

http://linux.die.net/man/8/grpconv：

grpconv命令根据组和一个可选的现有gshadow创建gshadow。