title: Makefile task halt on error, can I continue run it?
body: <p>In my makefile there is a task to sync config files</p>
  
  <pre><code>redis:
      mkdir -p /var/lib/redis
      mkdir -p /var/log/redis
      useradd --system --home-dir /var/lib/redis redis
      chown redis.redis /var/lib/redis
      chown redis.redis /var/log/redis
      cp ./scripts/redis-server.d.conf /etc/init/redis-server.conf
      cp ./scripts/redis.conf /etc/redis.conf
      restart redis
  </code></pre>
  
  <p>but when I run 2nd time:</p>
  
  <pre><code>useradd --system --home-dir /var/lib/redis redis
  useradd: user 'redis' already exists
  </code></pre>
  
  <p>as you can see, it halt on useradd, can I continue run it?</p>