linux cut 截取 echo输出的结果用df -i $HOME 命令输出如下我想用一个变量保存可用这个百分数(下面的1%),该怎么写
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![linux cut 截取 echo输出的结果用df -i $HOME 命令输出如下我想用一个变量保存可用这个百分数(下面的1%),该怎么写](/uploads/image/z/12456987-51-7.jpg?t=linux+cut+%E6%88%AA%E5%8F%96+echo%E8%BE%93%E5%87%BA%E7%9A%84%E7%BB%93%E6%9E%9C%E7%94%A8df+-i+%24HOME+%E5%91%BD%E4%BB%A4%E8%BE%93%E5%87%BA%E5%A6%82%E4%B8%8B%E6%88%91%E6%83%B3%E7%94%A8%E4%B8%80%E4%B8%AA%E5%8F%98%E9%87%8F%E4%BF%9D%E5%AD%98%E5%8F%AF%E7%94%A8%E8%BF%99%E4%B8%AA%E7%99%BE%E5%88%86%E6%95%B0%EF%BC%88%E4%B8%8B%E9%9D%A2%E7%9A%841%25%EF%BC%89%2C%E8%AF%A5%E6%80%8E%E4%B9%88%E5%86%99)
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