如何使用很多命令在bash脚本中执行ssh？

Question

I tried to run the following command in a bash script but only till ./install.sh rereplica is called . Rest of the commands are not called at all.

  ssh $node2user@$node2 "cd /tmp; tar -xf $mmCS.tar; cd $mmCS; ./install.sh csreplica; ./install.sh keepalived $vip low;./install.sh haproxy $node1:8080 $node2:8080 $vip:8080; ./install.sh confmongo $dbPath"

Answer 1

If I have to do execute a complex script using SSH, I usually write a script locally, copy it on the target machine with SSH and then execute it there:

scp foo.sh $node2user@$node2:
ssh $node2user@$node2 "bash ./foo.sh"

That way, I can debug the script simply by invoking it with bash -x and I can use the full power of BASH.

Alternatively, you can use

ssh $node2user@$node2 "set +x; cd /tmp; ..."

Answer 2

您可以在标准输入上为ssh提供脚本：

ssh $node2user@$node2 < my_script.sh