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From "Brahma Reddy Battula (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-6642) [ FsShell - help message ] Need to refactor usage info for shell commands
Date Tue, 08 Jul 2014 13:57:06 GMT
Brahma Reddy Battula created HDFS-6642:

             Summary: [ FsShell - help message ] Need to refactor usage info for shell commands
                 Key: HDFS-6642
                 URL: https://issues.apache.org/jira/browse/HDFS-6642
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: hdfs-client
            Reporter: Brahma Reddy Battula

Following two can be refactored, 
1 ) private final String usagePrefix =
    "Usage: hadoop fs [generic options]";

This will come for hadoop fs,hdfs dfs...I feel, it can be separated out

2 ) Following generics also will be called for dfs, haadmin which is not required.

      public static void printGenericCommandUsage(PrintStream out) {
    out.println("Generic options supported are");
    out.println("-conf <configuration file>     specify an application configuration
    out.println("-D <property=value>            use value for given property");
    out.println("-fs <local|namenode:port>      specify a namenode");
    out.println("-jt <local|jobtracker:port>    specify a job tracker");
    out.println("-files <comma separated list of files>    " + 
      "specify comma separated files to be copied to the map reduce cluster");
    out.println("-libjars <comma separated list of jars>    " +
      "specify comma separated jar files to include in the classpath.");
    out.println("-archives <comma separated list of archives>    " +
                "specify comma separated archives to be unarchived" +
                " on the compute machines.\n");
    out.println("The general command line syntax is");
    out.println("bin/hadoop command [genericOptions] [commandOptions]\n");

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