我直接kill掉mongodb的服务进程，下一次启动的时候就会出现unclean shutdown的提示。
我知道进入mongo程序进入mongo自己的shell可以关闭服务，不过如果我要使用bash将如何实现呢？
我知道mongo有一个--eval参数，可以直接运行命令，但如果我直接--eval "db.shutdownServer()"的话老是出现让我use admin的提示，但是如果我--eval "use admin;db.shutdownServer()"的话呢又说我语法错误，真不知道要怎么弄才能对
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I found the answer to this question myself:
That’s it. Of course, if you have a port or password, please add the corresponding parameters. The format can be seen in ./mongo --help
The reason why I have been asking this question before is because --help says that adding a username requires -u username, which is similar to mysql, but I have tried it
Still not working, I don’t know if it’s a bug
Please try to use the
kill -2command to close the corresponding mongod process./mongo ip:port/admin --eval "db.shutdownServer()"