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Update date.md #107

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merged 1 commit into from May 19, 2019
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Expand Up @@ -152,5 +152,19 @@ difference=$(( end - start ))
echo $difference seconds.
```

当你考虑输出带有时间的字符串时，例如（Current time: 2019/05/19）：

最常用的方法：

```shell
echo -e "Current time: $(date +"%Y%m%d")"
```

另一种方法：
```shell
suffix='Current time:'
#和echo的用法差不多，注意如果换成单引号就不能替换变量了。
date +"${suffix} %Y/%m/%d"
```

<!-- Linux命令行搜索引擎：https://jaywcjlove.github.io/linux-command/ -->