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error: Tips depend on target shell and yours is unknown. Add a shebang or a 'shell' directive. [SC2148] #439

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wwcchh0123 opened this issue Nov 8, 2024 · 0 comments

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@wwcchh0123
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lint 解释

  • 该 lint 出现表明脚本缺少有效的 shebang 行(如 #!/bin/bash#!/bin/sh),导致 shellcheck 无法确定目标 Shell 的类型。没有明确的 shebang,shellcheck 无法提供针对特定 Shell 的准确建议和最佳实践,因为不同的 Shell 可能支持不同的语法和功能。

错误用法

  • 以下是一个示例,展示了缺少 shebang 的情况:
# 没有 shebang 行
echo "Hello, World!"

正确用法

  • 方案一:使用 Bash
    如果你的脚本需要使用 Bash 特有的功能,可以添加以下 shebang:
#!/bin/bash

echo "Hello, World!"
  • 方案二:使用 POSIX Shell
    如果你希望脚本能够在任何 POSIX 兼容的 Shell 中运行,可以使用:
#!/bin/sh

echo "Hello, World!"
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