本文整理了Java中org.apache.hadoop.util.Shell.getReadlinkCommand()方法的一些代码示例，展示了Shell.getReadlinkCommand()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Shell.getReadlinkCommand()方法的具体详情如下：
包路径：org.apache.hadoop.util.Shell
类名称：Shell
方法名：getReadlinkCommand

Shell.getReadlinkCommand介绍

[英]Return a command to read the target of the a symbolic link
[中]返回读取符号链接目标的命令

代码示例

代码示例来源：origin: org.apache.hadoop/hadoop-common

/**
 * Returns the target of the given symlink. Returns the empty string if
 * the given path does not refer to a symlink or there is an error
 * accessing the symlink.
 * @param f File representing the symbolic link.
 * @return The target of the symbolic link, empty string on error or if not
 *         a symlink.
 */
public static String readLink(File f) {
 /* NB: Use readSymbolicLink in java.nio.file.Path once available. Could
  * use getCanonicalPath in File to get the target of the symlink but that
  * does not indicate if the given path refers to a symlink.
  */
 if (f == null) {
  LOG.warn("Can not read a null symLink");
  return "";
 }
 try {
  return Shell.execCommand(
    Shell.getReadlinkCommand(f.toString())).trim();
 } catch (IOException x) {
  return "";
 }
}

代码示例来源：origin: ch.cern.hadoop/hadoop-common

/**
 * Returns the target of the given symlink. Returns the empty string if
 * the given path does not refer to a symlink or there is an error
 * accessing the symlink.
 * @param f File representing the symbolic link.
 * @return The target of the symbolic link, empty string on error or if not
 *         a symlink.
 */
public static String readLink(File f) {
 /* NB: Use readSymbolicLink in java.nio.file.Path once available. Could
  * use getCanonicalPath in File to get the target of the symlink but that
  * does not indicate if the given path refers to a symlink.
  */
 try {
  return Shell.execCommand(
    Shell.getReadlinkCommand(f.toString())).trim();
 } catch (IOException x) {
  return "";
 }
}

代码示例来源：origin: io.hops/hadoop-common

/**
 * Returns the target of the given symlink. Returns the empty string if
 * the given path does not refer to a symlink or there is an error
 * accessing the symlink.
 * @param f File representing the symbolic link.
 * @return The target of the symbolic link, empty string on error or if not
 *         a symlink.
 */
public static String readLink(File f) {
 /* NB: Use readSymbolicLink in java.nio.file.Path once available. Could
  * use getCanonicalPath in File to get the target of the symlink but that
  * does not indicate if the given path refers to a symlink.
  */
 try {
  return Shell.execCommand(
    Shell.getReadlinkCommand(f.toString())).trim();
 } catch (IOException x) {
  return "";
 }
}

代码示例来源：origin: io.prestosql.hadoop/hadoop-apache

/**
 * Returns the target of the given symlink. Returns the empty string if
 * the given path does not refer to a symlink or there is an error
 * accessing the symlink.
 * @param f File representing the symbolic link.
 * @return The target of the symbolic link, empty string on error or if not
 *         a symlink.
 */
public static String readLink(File f) {
 /* NB: Use readSymbolicLink in java.nio.file.Path once available. Could
  * use getCanonicalPath in File to get the target of the symlink but that
  * does not indicate if the given path refers to a symlink.
  */
 try {
  return Shell.execCommand(
    Shell.getReadlinkCommand(f.toString())).trim();
 } catch (IOException x) {
  return "";
 }
}

代码示例来源：origin: com.github.jiayuhan-it/hadoop-common

/**
 * Returns the target of the given symlink. Returns the empty string if
 * the given path does not refer to a symlink or there is an error
 * accessing the symlink.
 * @param f File representing the symbolic link.
 * @return The target of the symbolic link, empty string on error or if not
 *         a symlink.
 */
public static String readLink(File f) {
 /* NB: Use readSymbolicLink in java.nio.file.Path once available. Could
  * use getCanonicalPath in File to get the target of the symlink but that
  * does not indicate if the given path refers to a symlink.
  */
 try {
  return Shell.execCommand(
    Shell.getReadlinkCommand(f.toString())).trim();
 } catch (IOException x) {
  return "";
 }
}