Examples of org.jclouds.ssh.SshClient.exec()

org.jclouds.ssh.SshClient.exec()
Execute a process and block until it is complete @param command command line to invoke @return output of the command

   private void doCheckKey(String address) {
      SshClient ssh = sshFactory.create(HostAndPort.fromParts(address, 22),
            LoginCredentials.builder().user("root").privateKey(keyPair.getKeyMaterial()).build());
      try {
         ssh.connect();
         ExecResponse hello = ssh.exec("echo hello");
         assertEquals(hello.getOutput().trim(), "hello");
      } finally {
         if (ssh != null)
            ssh.disconnect();
      }

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         System.out.printf("%d: %s writing ebs script%n", System.currentTimeMillis(), instance.getId());
         String script = "/tmp/mkebsboot-init.sh";
         ssh.put(script, Payloads.newStringPayload(mkEbsBoot));


         System.out.printf("%d: %s launching ebs script%n", System.currentTimeMillis(), instance.getId());
         ssh.exec("chmod 755 " + script);
         ssh.exec(script + " init");
         ExecResponse output = ssh.exec("sudo " + script + " start");
         System.out.println(output);
         output = ssh.exec(script + " status");

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         String script = "/tmp/mkebsboot-init.sh";
         ssh.put(script, Payloads.newStringPayload(mkEbsBoot));


         System.out.printf("%d: %s launching ebs script%n", System.currentTimeMillis(), instance.getId());
         ssh.exec("chmod 755 " + script);
         ssh.exec(script + " init");
         ExecResponse output = ssh.exec("sudo " + script + " start");
         System.out.println(output);
         output = ssh.exec(script + " status");


         assert !output.getOutput().trim().equals("") : output;

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         ssh.put(script, Payloads.newStringPayload(mkEbsBoot));


         System.out.printf("%d: %s launching ebs script%n", System.currentTimeMillis(), instance.getId());
         ssh.exec("chmod 755 " + script);
         ssh.exec(script + " init");
         ExecResponse output = ssh.exec("sudo " + script + " start");
         System.out.println(output);
         output = ssh.exec(script + " status");


         assert !output.getOutput().trim().equals("") : output;
         Predicate<String> scriptTester = retry(new ScriptTester(ssh, SCRIPT_END), 600, 10, SECONDS);

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         System.out.printf("%d: %s launching ebs script%n", System.currentTimeMillis(), instance.getId());
         ssh.exec("chmod 755 " + script);
         ssh.exec(script + " init");
         ExecResponse output = ssh.exec("sudo " + script + " start");
         System.out.println(output);
         output = ssh.exec(script + " status");


         assert !output.getOutput().trim().equals("") : output;
         Predicate<String> scriptTester = retry(new ScriptTester(ssh, SCRIPT_END), 600, 10, SECONDS);
         scriptTester.apply(script);
      } finally {

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   private void doCheckKey(String address) {
      SshClient ssh = sshFactory.create(HostAndPort.fromParts(address, 22),
            LoginCredentials.builder().user("ubuntu").privateKey(keyPair.getKeyMaterial()).build());
      try {
         ssh.connect();
         ExecResponse hello = ssh.exec("echo hello");
         assertEquals(hello.getOutput().trim(), "hello");
      } finally {
         if (ssh != null)
            ssh.disconnect();
      }

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      assertTrue(socketTester.apply(socket), socket.toString());
      SshClient api = context.utils().injector().getInstance(SshClient.Factory.class)
            .create(socket, LoginCredentials.builder().user("root").privateKey(key.get("private")).build());
      try {
         api.connect();
         ExecResponse exec = api.exec("echo hello");
         System.out.println(exec);
         assertEquals(exec.getOutput().trim(), "hello");
      } finally {
         if (api != null)
            api.disconnect();

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   @Test
   public void testExecHostname() throws IOException {
      SshClient client = setupClient();
      try {
         ExecResponse response = client.exec("hostname");
         assertEquals(response.getExitStatus(), 0);
         assertEquals(response.getError(), "");
         assertEquals(response.getOutput().trim(), "localhost".equals(sshHost) ? InetAddress.getLocalHost().getHostName()
               : sshHost);
      } finally {

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   @Test
   public void testExecInvalidCommand() throws IOException {
      SshClient client = setupClient();
      try {
         ExecResponse response = client.exec("thisCommandDoesNotExist");
         assertNotEquals(response.getExitStatus(), 0);
         assertTrue(response.getOutput().contains("not found") || response.getError().contains("not found"), 
               "stdout="+response.getOutput()+"; stderr="+response.getError());
      } finally {
         client.disconnect();

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   public void testExecHostnameRepeatedlyWithSameSessions() throws Exception {
      final SshClient client = setupClient();
      
      try {
         for (int i = 0; i < 100; i++) {
            ExecResponse response = client.exec("hostname");
            assertEquals(response.getError(), "");
            assertEquals(response.getOutput().trim(), "localhost".equals(sshHost) ? InetAddress.getLocalHost().getHostName()
                     : sshHost);
            //System.out.println("completed (sequentially) "+i);
         }

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