Bash script remote variable to local script

Question

I'm trying to make a script that uses variables from a remote script. Currently the script executes the remote script with an ssh user@server "/route/to/script.sh" command in the script. In that script I'm saving some variables. I wish to use these variables in my local script where I've began everything.

Any ideas how to do this?

Regards: Bert

The remote script needs to print the variable values, then the local script has to read the output and assign to its variables. — Barmar
– Barmar, Commented May 3, 2017 at 15:38
One important thing to cover here -- how much do you trust the remote machine? Many of the approaches (particularly if you want to transfer multiple variables, and let the remote system choose their names) have substantial security caveats. It's safer to just treat your data as data, and not try to let the remote system control local variables as such. — Charles Duffy
– Charles Duffy, Commented May 3, 2017 at 15:42
Don't confuse data with variables. A variable is a name that refers to data; you want the data from the remote script, not the variable. — chepner
– chepner, Commented May 3, 2017 at 15:42

Alfe · Accepted Answer · 2017-05-03 15:42:14Z

1

Lots of options possible. One could be:

a=$(ssh user@server "/route/to/script.sh")

While the remote script.sh looks something like this:

#!/bin/bash

hostname

This way, the output of the command hostname (should be the name of the remote host) will end up in the local variable a.

answered May 3, 2017 at 15:42

Alfe

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1 Comment

Bert Over a year ago

I've done just the same. :) Thanks dude. upvoted it, but I haven't got enough rep, to mark it as an answer. Please do so yourself.

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