In the final example, the value of the HOME variable is tested to see if it is a directory using the -d unary operator.
在最后一个示例中,测试home变量的值,用单目操作符- d检查它是不是目录。
In the final example, the value of the HOME variable is tested to see if it is a directory using the -d unary operator.
在最后一个示例中,测试home变量的值,用单目操作符- d检查它是不是目录。
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