Linux 找出当前存在多少 SSH 连接
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Find out how much SSH-connections currently exist
提问by Chrispie
I'm using a simple Shell-script on my Linux-server which checks, if a rsync-job is running or if any client some directories from the server via Samba. If this is the case then nothing happens, but are there no jobs and no Samba is used, than the server goes into hibernate.
我在我的 Linux 服务器上使用一个简单的 Shell 脚本来检查 rsync 作业是否正在运行，或者是否有任何客户端通过 Samba 从服务器获取某些目录。如果是这种情况，那么什么都不会发生，但是没有作业并且没有使用 Samba，然后服务器进入休眠状态。
Is there any simple command, which I can use to check if a ssh-connection to the server exist? I want to add this to my Shell-script, so that the server doesn't go to hibernate, if such a connection exist.
是否有任何简单的命令可以用来检查是否存在与服务器的 ssh 连接？我想将它添加到我的 Shell 脚本中，这样服务器就不会进入休眠状态（如果存在这样的连接）。
采纳答案by TimWolla
Scan the processlist for sshd:. Established connections look something like this: sshd: <username>…
扫描进程列表中的sshd:. 已建立的连接如下所示：sshd: <username>…
ps -A x |grep sshd |grep -v grep
should work out for you.
应该适合你。
回答by exussum
use whocommand
使用who命令
it gives output like
它给出了类似的输出
username pts/1 2013-06-19 19:51 (ip)
You could parse that to see how many non locals are added and get their usernames (or there are options see man whofor more info
您可以解析它以查看添加了多少非本地人并获取他们的用户名（或者有选项查看man who更多信息
gives a count of how many non localhost users there are
计算有多少非本地主机用户
who | grep -v localhost | wc -l
