If lastupdate is not present, then a password has never been set.

如果lastupdate不存在，就说明没有设置过密码。

youdao

From the above output, you can tell that user alpha does have a password set by the lastupdate entry.

在上面的输出中，可以通过lastupdate条目看出用户alpha已经设置了密码。

youdao

You can see the lastupdate value in seconds from the above output. In other words, the last time the password was changed.

在上面的输出中可以看到以秒为单位的lastupdate值。

youdao