将远程服务器的主机名添加到格式化的 ssh 命令响应中

Question

如果我运行在远程 REHL 服务器上直接（通过 ssh 终端）执行此命令： w -uh | awk -vhostname="$(hostname)" '{print "On "hostname ,,"is connected with IP: "}'

我得到这样的输出：

On remote.server1.address.com accountname is connected with IP: 8.8.8.8

但是，如果我运行通过脚本中的 SSH 命令远程执行此命令（以检查多个服务器）： ssh account@remote.server.address.com w -uh | awk -vhostname="$(hostname)" '{print "On "hostname ,,"is connected with IP: "}'

命令的结果给出本地机器主机名而不是远程服务器：

On local.machine.address.com accountname is connected with IP: 8.8.8.8

On local.machine.address.com accountname is connected with IP: 0.0.0.0

On local.machine.address.com accountname is connected with IP:255.255.255.255*

我正在寻找如下结果。

On remote.server1.address.com accountname is connected with IP: 8.8.8.8

On remote.server2.address.com accountname is connected with IP: 0.0.0.0

On remote.server3.address.com accountname is connected with IP:255.255.255.255*

Answer 1

发生这种情况是因为命令 hostname 在您的本地计算机上是运行。您需要在引号中传递整个命令，例如：

ssh account@remote.server.address.com "w -uh | awk -v hostname=$(hostname) '{print \"On \"hostname ,$1,\"is connected with IP: \"$3}'"

将远程服务器的主机名添加到格式化的 ssh 命令响应中

Adding the hostname of a remote server to a formatted ssh command response

ssh

awk

hostname