how to redirect output of echo over ssh to a file

问题:

I'm trying to redirect content of a variable to a file through ssh. like:

ssh $MachineIP  echo $CM_Config > $mName/CM_CONFIG

where $CM_Config is a local variable in my host containing multiple line, and $mName/CM_CONFIG is located in $MachineIP how should I redirect local variable to the remote file assuming my ssh configurations are correct. Thanks in advance

回答1:

You must quote the whole command with double quotes

ssh $MachineIP "echo $CM_Config > $mName/CM_CONFIG"

This allows the variables to be replaced by the local shell and the redirection done at the remote host.

回答2:

In my case the problem solved with this command:

ssh $MachineIP " echo \"$CM_Config\" > \"$mName/CM_CONFIG\" "

In fact without \" enclosing my variable, my problem didn't solved. Maybe it is because that the content of these variables are somehow like bash command and are in multiple lines.