[ale] Using locally defined variable in ssh command line to remote host?

[Jeff Lightner]

Question:

How can I create a variable in a script such that defining it on
originating host allows me to feed it its value into the ssh command
line on remote host?

 

Details:

I'm trying to do something like this:

 

#!bin/bash

REMSERVER=billybob

REMLOGDIR=/felix/preprod/jboss/server/default/log

 

ssh $REMSERVER 'sh -c "ls -tr  ${REMLOGDIR}/webserver.log* |xargs grep
-hA 10 DEBUG"'

 

The problem is the REMLOGDIR variable is defined on originating host so
of course has no meaning on destination host. 

 

Please don't tell me to create a script on remote host and call it from
originating host - that has occurred to me but I don't really want to do
that.   If it can't be done in a single script I'll just hard code the
value in the ssh command line but I wanted to see if anyone had any
ideas.  

 

Using quoting, eval etc... doesn't work.   

 

I did find mention of a variable definition in authorized_keys in .ssh
of remote host but wasn't real sure how that worked and also am not sure
I want to add something like this to that file for fear it would impact
other ssh activity to same user from other locations.
 
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