a bash script for backing up the current directory to dropbox

backup2dropbox.sh

#!/bin/bash
if [[ $1 ]] 
then   
  BACKUP_ARCHIVE=$(basename $(pwd))_$(date "+%Y-%m-%d-%H%M%S")_\(${1// /-}\).tar.gz 
  echo "backing up to "$BACKUP_ARCHIVE
  tar -czf $BACKUP_ARCHIVE .
  cp -pv $BACKUP_ARCHIVE ~/Dropbox/Backups
  rm -v $BACKUP_ARCHIVE
  echo done
else 
  echo "usage!"
fi