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hostname command man page

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HOSTNAME(1)   Linux Programmer’s Manual   HOSTNAME(1)

NAME
       hostname - show or set the system’s host name
       domainname - show or set the system’s NIS/YP domain name
       dnsdomainname - show the system’s DNS domain name
       nisdomainname - show or set system’s NIS/YP domain name
       ypdomainname - show or set the system’s NIS/YP domain name

head command man page

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HEAD(1) User Commands       HEAD(1)

NAME
       head - output the first part of files

The most useful ssh and telnet client

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I think the most useful ssh and telnet client is putty.

hdparm command man page

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HDPARM(8)            HDPARM(8)

NAME
       hdparm - get/set hard disk parameters

Oracle database is quiesced when recreating OEM

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Oracle database is quiesced when recreating Oracle Enterprise Manager (OEM) using Enterprise Manager Configuration Agent (EMCA) and can not be connected to database but sys user.

In the alert log file:

grep command man page

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GREP(1)       GREP(1)

NAME
       grep, egrep, fgrep - print lines matching a pattern

Gartner Application Architecture, Development & Integration Summit 2012 Sydney

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The Gartner Application Architecture, Development & Integration Summit provides you with a forum to meet your peers, Gartner analysts and service providers to discuss your hottest topics including cloud computing, SOA, governance, modernization, agile, event processing and more.

Mysql server memory variables

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join_buffer_size: (PER SESSION) Controls the amount of memory allocated to perform joins on tables that have no keys which can be used to perform a condition filter. Allocated for each table joined without necessary filter conditions.

key_buffer_size: (GLOBAL) (MyISAM-only) Controls the amount of memory allocated to the MyISAM index key cache.

Gartner Business Process Management Summit 2012 Sydney

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Gartner Business Process Management Summit 2012 is the premier meeting place for IT and business executives and professionals who are responsible for implementing, managing or maintaining Business Process Management. 
20 - 21 August 2012 | Sydney, Australia
http://www.gartner.com/technology/summits/apac/business-process/

JVM Language Summit 2012

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July 30–August 1, 2012

Oracle Corporation: Santa Clara campus


The 2012 JVM Language Summit is an open technical collaboration among language designers, compiler writers, tool builders, runtime engineers, and VM architects.

Java code for extracting email addresses from a text file using regular expression

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import java.io.*;
import java.util.regex.*;

public class harness {
 /**
  * @param args
  */
 public static void main(String[] args) {
 // TODO Auto-generated method stub

SELINUX Basics

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To administrate SELinux on a linux box you should have to know some basics of SELinux:
  • Viewing and changing SELinux states
  • Viewing and changing SELinux security context
  • Viewing SELinux violation messages
  • Viewing and changing the state of SELinux booleans
  • Using basic features of the SELinux gui tool

Five ways to deploy an application to JBoss AS 7

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There are five ways to deploy an application to JBoss AS 7 using:

  1. Command Line
  2. Web Console
  3. File System
  4. Maven Plugin
  5. Eclipse

JUDCon2012 Boston

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The Boston JBoss Users and Developers Conference (JUDCon), the conference by developers and for developers is now a memory.
With twice as many registered than last year, the event ran for two days with three tracks that focused on deep dives into JBoss projects and how they benefited developers.


JUDCon 2012

gawk command man page

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GAWK(1)       Utility Commands       GAWK(1)

NAME
       gawk - pattern scanning and processing language

The most basic backup tool for Oracle database

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I think the most basic backup tool for oracle is RMAN and datapump is not taken as a backup solution generally.

Oracle http-web-access.log file is growing in the long run

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http-web-access.log file is in the $ORACLE_HOME/oc4j/j2ee/OC4J_DBConsole_<host>_<sid>/log directory. This log file grows in the long run and can be managed from  $ORACLE_HOME/oc4j/j2ee/OC4J_DBConsole_<host>_<sid>/config/http-web-site.xml file.


<?xml version = '1.0' standalone = 'yes'?>
<!DOCTYPE web-site PUBLIC "OracleAS XML Web-site" "http://xmlns.oracle.com/ias/dtds/web-site-9_04.dtd">

Restarting SQLEXPRESS with command prompt using batch file

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Starting and stopping sql server express edition from command line is different from default instance.

Within a windows batch file:

NET STOP MSSQL$SQLEXPRESS
timeout 5
NET START MSSQL$SQLEXPRESS