Examples of org.apache.hadoop.fs.FsShell.run()

org.apache.hadoop.fs.FsShell.run()
run

          String s = new Path(dstroot.getPath(), lsrpath.toString()).toString();
          if (shellargs[1] == null || !isAncestorPath(shellargs[1], s)) {
            shellargs[1] = s;
            int r = 0;
            try {
               r = shell.run(shellargs);
            } catch(Exception e) {
              throw new IOException("Exception from shell.", e);
            }
            if (r != 0) {
              throw new IOException("\"" + shellargs[0] + " " + shellargs[1]

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          FileSystem fs2 = oldPath.getFileSystem(conf);
          if (fs2.exists(oldPath)) {
            // use FsShell to move data to .Trash first rather than delete permanently
            FsShell fshell = new FsShell();
            fshell.setConf(conf);
            fshell.run(new String[]{"-rmr", oldPath.toString()});
          }
        } catch (Exception e) {
          //swallow the exception
          LOG.warn("Directory " + oldPath.toString() + " canot be removed.");
        }

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      bm.addToInvalidates(b.getLocalBlock(), dn);
      bm.blocksMap.removeNode(b.getLocalBlock(), dn);
      
      // increment this file's replication factor
      FsShell shell = new FsShell(conf);
      assertEquals(0, shell.run(new String[]{
          "-setrep", "-w", Integer.toString(1+REPLICATION_FACTOR), FILE_NAME}));
    } finally {
      cluster.shutdown();
    }

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      String[] args = new String[2];
      args[0] = "-du";
      args[1] = "/test/dir";
      int val = -1;
      try {
        val = shell.run(args);
      } catch (Exception e) {
        System.err.println("Exception raised from DFSShell.run " +
                            e.getLocalizedMessage());
      }
      assertTrue(val == 0);

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      // Verify copying non existing sources do not create zero byte
      // destination files
      {
        String[] args = {"-copyToLocal", "nosuchfile", TEST_ROOT_DIR};
        try {   
          assertEquals(1, shell.run(args));
        } catch (Exception e) {
          System.err.println("Exception raised from DFSShell.run " +
                            e.getLocalizedMessage());
        }                            
        File f6 = new File(TEST_ROOT_DIR, "nosuchfile");

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        String[] args = new String[2];
        args[0] = "-rm";
        args[1] = "/test/mkdirs/myFile*";
        int val = -1;
        try {
          val = shell.run(args);
        } catch (Exception e) {
          System.err.println("Exception raised from DFSShell.run " +
                             e.getLocalizedMessage()); 
        }
        assertTrue(val == 0);

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        args[0] = "-cat";
        args[1] = "/test/mkdirs/myFile";
        args[2] = "/test/mkdirs/myFile2";        
        int val = -1;
        try {
          val = shell.run(args);
        } catch (Exception e) {
          System.err.println("Exception raised from DFSShell.run: " +
                             StringUtils.stringifyException(e)); 
        }
        assertTrue(val == 0);

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        String[] args = new String[2];
        args[0] = "-cat";
        args[1] = "/test/mkdirs/myFile1";
        int val = -1;
        try {
          val = shell.run(args);
        } catch (Exception e) {
          System.err.println("Exception raised from DFSShell.run " +
                             e.getLocalizedMessage()); 
        }
        assertTrue(val != 0);

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        String[] args = new String[2];
        args[0] = "-rm";
        args[1] = "/test/mkdirs/myFile1";
        int val = -1;
        try {
          val = shell.run(args);
        } catch (Exception e) {
          System.err.println("Exception raised from DFSShell.run " +
                             e.getLocalizedMessage()); 
        }
        assertTrue(val != 0);

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        String[] args = new String[2];
        args[0] = "-rm";
        args[1] = "/test/mkdirs/myFile";
        int val = -1;
        try {
          val = shell.run(args);
        } catch (Exception e) {
          System.err.println("Exception raised from DFSShell.run " +
                             e.getLocalizedMessage()); 
        }
        assertTrue(val == 0);

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