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unixsshraspberry-piraspbian

Passing a variable with escaping double quotes over ssh

If I use a variable with escaping double quotes, ", they get removed over ssh.

Here's an example:

$ foo=\"word\"
$ echo $foo
"word"
$ ssh pi@$pi03 "echo $foo"
word

Does anyone know why that might be/what the solution could be? I could post the code to the practical use I need the quotes for, but figured this was a simpler way of explaining.

Solution

  • Use triple escaping:

    foo=\\\"word\\"
echo $foo
\"word\"
ssh pi@1pi "echo $foo"
"word"

    But in general passing variables this way is something you should avoid.