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lang-bash
$1in the script that executes remotely (instead of$varA). That ought to work. If not, update the text in the question with information about what "doesn't work".$varAwill be passed as the first argument toscriptb.shonly if it contains none of the special characters of the login shell of the user on the remote host. For instance, if$varAcontained$(reboot)(quite unusual for a hostname) and the login shell of the user was POSIX-like, that would causerebootto be called instead.