backup-server.sh

#!/bin/bash

sshport=22
sshcert=~/.ssh/id_rsa
remoteserver= # FILL IN, e.g root@0.0.0.0
localpath= # FILL IN without trailing slash, e.g ~/backups/server
usesudo= # FILL IN true or false

if [[ $usesudo == true ]]; then
  rsyncargs=(-rlptzhu -e "ssh -p $sshport" --rsync-path="sudo rsync" --partial --delete-after --info=progress2)
else
  rsyncargs=(-rlptzhu -e "ssh -p $sshport" --partial --delete-after --info=progress2)
fi

echo ":: Authenticating..."
ssh-add -l > /dev/null
if [[ $? != 0 ]]; then
	ssh-add $sshcert
fi

backup() {
	echo; echo ":: Backuping $1..."
	mkdir -p $localpath/$1
	rsync "${rsyncargs[@]}" $remoteserver:$1/ $localpath/$1
}

backup /etc
backup /home
backup /var/lib