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注意: readlink在RHEL4和RHEL5上的行为不一致

  • July 21, 2010 – 2:22 pm
  • Posted in Uncategorized
  • Tagged ,

如果我们运行下面的语句，并且源文件不存在。 

ln -sf not_exists symbol_link
readlink -f symbol_link

在RHEL4上的readlink不会打印任何输出，而在RHEL5上readlink会在标准输出打印not_exists的路径。这两个系统上readlink的版本分别是：

  • RHEL4: readlink (coreutils) 5.2.1
  • RHEL5: readlink (GNU coreutils) 5.97

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