troubleshooting Question

How can I determine missing excape characters from current string command from master to remote server via SSH?

Avatar of AIX25
AIX25Flag for United States of America asked on
* BashProgrammingShell ScriptingUnix OS
9 Comments1 Solution185 ViewsLast Modified:
I am running into issue to determine escape characters from master to remote server over ssh.  I can return desired output on remote server with no issues.  Trying to run similar string on master server to remote server to get same result.

Below example is working fine on remote server and has expected results:

[root@remote_server ~]# echo ${passwd_expire}
Jun 17, 2020
[root@remote_server ~]# echo ${current_date}
Jan 09, 2020
[root@remote_server ~]# echo $(( ($(date --date="$(echo ${passwd_expire})" +%s) - $(date --date="$(echo ${current_date})" +%s) )/(60*60*24) ))

I would like to run those remotely and get same output, but I keep running into bash errors and I can't determine which escape character I could be missing or if it's execution process order is incorrect.


[root@master ~]# echo ${passwd_expire}
Jun 17, 2020
[root@master ~]# echo ${current_date}
Jan 09, 2020
[root@master ~]# ssh -q ${server} "echo $(( ($(date --date="$(echo ${passwd_expire})" +%s) - $(date --date="$(echo ${current_date})" +%s) )/(60*60*24) ))"

Need some advice on how I can run similar string directly on remote server on this master server as well via ssh.

Our community of experts have been thoroughly vetted for their expertise and industry experience.

Join our community to see this answer!
Unlock 1 Answer and 9 Comments.
Start Free Trial
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 1 Answer and 9 Comments.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros