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The following page has been changed by HairongKuang: http://wiki.apache.org/lucene-hadoop/hadoop-0%2e1-dev/bin/hadoop_dfs ------------------------------------------------------------------------------ hadoop dfs is the command used to execute dfs commands. The full syntax is - hadoop dfs [-local | -dfs <namenode:port>] [-ls <path>] [-lsr <path>] [-du <path>] [-mv <src> <dst>] [-cp <src> <dst>] [-rm <src>] [-put <localsrc> <dst>] [-copyFromLocal <localsrc> <dst>] [-moveFromLocal <localsrc> <dst>] [-get <src> <localdst>] [-cat <src>] [-copyToLocal <src><localdst>] [-moveToLocal <src> <localdst>] [-mkdir <path>] [-report] [-setrep [-R] <rep> <path/file>] + hadoop dfs -fs [local | <namenode:port>] [-ls <path>] [-lsr <path>] [-du <path>] [-mv <src> <dst>] [-cp <src> <dst>] [-rm <src>] [-put <localsrc> <dst>] [-copyFromLocal <localsrc> <dst>] [-moveFromLocal <localsrc> <dst>] [-get <src> <localdst>] [-cat <src>] [-copyToLocal <src><localdst>] [-moveToLocal <src> <localdst>] [-mkdir <path>] [-report] [-setrep [-R] <rep> <path/file>] - [-local | -dfs <namenode:port>]: if not specified, the current configuration is used, taken from the following, in increasing precedence: + -fs [local | <namenode:port>]: if not specified, the current configuration is used, taken from the following, in increasing precedence: * hadoop-default.xml inside the hadoop jar file * hadoop-default.xml in $HADOOP_CONF_DIR * hadoop-site.xml in $HADOOP_CONF_DIR - -local means use the local file system as your DFS, -dfs <namenode:port> specifies a particular name node to contact. + local means use the local file system as your DFS, -<namenode:port> specifies a particular name node to contact. this argument is optional but if used must appear first on the command line. exactly one additional argument must be specified.