readlink -f

`readlink -f` 是一个 Linux 命令，它可以用来查找符号链接的目标路径并返回一个规范化的绝对路径。具体来说，`readlink` 命令可以读取一个符号链接所指向的文件或目录，并返回该文件或目录的绝对路径。

`readlink -f` 命令可以用来获取符号链接的绝对路径，即使该符号链接本身是相对路径或包含了多个符号链接。它会将所有的符号链接都解析为其真实路径，并返回一个规范化的绝对路径。

以下是一个示例，演示了如何使用 `readlink -f` 命令来获取符号链接的绝对路径：

# 假设存在一个名为 link 的符号链接，指向 /usr/bin/python3.8
$ ls -l link
lrwxrwxrwx 1 user user 16 May  1 16:18 link -> /usr/bin/python3.8

# 使用 readlink -f 命令获取符号链接的绝对路径
$ readlink -f link
/usr/bin/python3.8

在上面的示例中，我们使用 `ls -l` 命令查看了一个名为 link 的符号链接的详细信息。然后，我们使用 `readlink -f` 命令获取了该符号链接所指向的文件的绝对路径，并输出到了屏幕上。

相关问题

`readlink -f

Hello! Sure, I am ChitGPT and I am here to help you. As for your question, `readlink -f` is a command used in Linux that outputs the canonicalized version of a given path name. It resolves all the symbolic links and returns the ultimate target. Is there anything else I can assist you with?

readlink -f ${0}

As an AI language model, I do not have access to the file system of the machine I am running on, so I cannot execute the `readlink -f ${0}` command or any other command that requires access to the file system. However, in general, the `readlink -f ${0}` command is used to obtain the absolute path of the script or executable file that is being executed. The `${0}` parameter refers to the name of the current script or executable file, and `readlink -f` resolves any symbolic links and returns the absolute path of the file.