bash script to set up CrashPlan client on OS X. Should be easily modifiable to support Linux.

crashplan-setup.sh

#!/usr/bin/env bash

# crashplan-setup.sh

usage () {
	echo "Usage: $0 <server> [user]"
	exit 255
}

SERVER="$1"

if [[ $1 == '' ]] ; then
	usage
fi

if nc -z $SERVER 22 >/dev/null ; then
	if [[ $2 != '' ]] ; then
		REMOTE_USER=$2
	else
		REMOTE_USER=admin
	fi

	echo "Fetching .ui_info from $SERVER as user $REMOTE_USER..."
	remote_info=$(ssh ${REMOTE_USER}@${SERVER} "cat /var/lib/crashplan/.ui_info" | perl -ne "print if s/^(.*),[^,]+\$/\$1,$SERVER/")
	if [[ $remote_info =~ ^[^,]+,[^,]+,[^,]+$ ]] ; then
		for ui_info_candidate in \
					"~/Library/Application Support/CrashPlan/.ui_info" \
					"/Library/Application Support/CrashPlan/.ui_info" \
					"/usr/local/crashplan/conf" \
				; do
			if [[ -e "$ui_info_candidate" ]] ; then
				LOCAL_UI_INFO="$ui_info_candidate"
				break
			fi
		done
		echo "Executing sudo to edit $LOCAL_UI_INFO (may require your user password)..."
		if sudo perl -ni -e "print '$remote_info'" "$LOCAL_UI_INFO" ; then
			echo '...done!'
			echo "Opening CrashPlan client...";
			open -a crashplan
		else
			echo '...failed!'
			echo "Error trying to update $LOCAL_UI_INFO (failed sudo?)"
		fi
	else
		echo "Error getting info from remote host! Stopping without changing local .ui_info file..."
		exit 254
	fi
else
	usage
fi