shell脚本查看参数类型

要查看shell脚本中的参数类型，可以使用特殊变量$@来表示所有的位置参数。在脚本中，可以使用for循环来遍历$@，然后使用条件判断语句来确定参数的类型。以下是一个示例脚本：

#!/bin/bash

for arg in "$@"
do
  if [[ $arg =~ ^<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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