Red Hat Calculator Command

These instructions are intended specifically for checking and updating chkconfig. This is the shell – a command process that allows you to control the computer via commands typed into a text interface. For more lsof command examples visit 10 lsof Command Examples in Linux. Red Hat is the world’s leading provider of enterprise open source solutions, including high-performing Linux, cloud, container, and Kubernetes technologies. The Red Hat Enterprise Edition version is 5. These commands are the first that most of us learn and use every day for millions of people. Prerequisites: Quick Installation of Apache, MySQL and PHP []. Example: open ~/Desktop/filename. Oracle does not warrant or make any representations regarding the use, validity, or accuracy of the results of the tool. Red Hat Product Security has rated this update as having a security impact of Moderate. Red Hat Enterprise Linux 6. Tested on CentOS 5. However, recommendation # 3 – Don’t create large images and the sentence “Don’t install unnecessary packages or run “updates” (yum update) that download files to a new image layer” has generated quite a few questions. We do this so that more people are able to harness the power of computing and digital technologies for work, to solve problems that matter to them, and to express themselves creatively. The Shell: You’ve probably heard mention of the Linux command line. If these users run the cat or ls command on the file, they will see that it exists, and they can open it in an editor. NET Core is a cross-platform, open source, and modular. TARGET may be a file or a directory. Apply to 262 Redhat Linux Jobs in Bangalore on Naukri. First we need to install lm_sensors: # yum install lm_sensors. Date command in Unix & Linux is used to format date as well as time. In this article I will share a short video tutorial and an updated calculator that can help you compare license cost for IBM MQ vs. Pipe set to the less command in order to read all of it. Hello there! We are conducting a survey to better understand the user experience in making a first edit. 79 - Operation Red Hat : Men and a Mission - Department of Defense. BUPERS Online (BOL) now has a self re-enable feature. Command Departments Contacts Marine Safety Detachments Cutters Public Affairs Welcome Aboard Regional Exam Center Cutters. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. All of Red Hat's official support and training and the Red Hat Certification Program centres around the Red Hat Enterprise Linux platform. Prerequisites: Quick Installation of Apache, MySQL and PHP []. Skins and Costumes can be spawn into the game with admin command: Cheat GFI Costume_Top 1 0 0 (in which gives (1) Top Hat skin. 6 Registering the Red Hat Support Tool Using the Command Line. 1 Job Portal. I'm not sure what the maximum length for this field is, but try to keep it reasonable (under 30 characters). It can open, edit, and save plain text files. Find and fix errors, and create deployment scripts in minutes. The process is very simple, everything is self-explanatory in the Marketplace environment and therefore, we will. The Adapter Software Installer is a one-step program that allows you to install all adapter software and out-of-box drivers, including both Ethernet and Storage drivers. Command Units Public Affairs Sector Upper Mississippi River. We believe free and open source data analysis software is a foundation for innovative and important work in science, education, and industry. Red Hat Enterprise Linux 6. We have observed many new changes on Red Hat Enterprise Linux and CentOS 7. 0: Note: For newer OS revisions, use the inbox driver provided by the OS vendor. head's basic syntax is: head [options] [file(s)] The square brackets indicate that the enclosed items are optional. The command displays the following output:. Log on to your server via SSH and then complete the following steps for your preferred set up method. You'll learn to use the graphical interface, command line, and the various tools and utilities built right into Red Hat Enterprise Linux to configure, maintain, and troubleshoot your server. x86_64), when I issue command: cat /etc/redhat-release I got: Red Hat Enterprise Linux Server release 5. Red Hat has announced a critical vulnerability in its DHCP client tracked as CVE-2018-1111 that could be exploited by attackers to execute arbitrary commands with root privileges on targeted systems. Directory Server; Configuring and managing with command-line utilities. Since your and Linux's terminology differs, you might think you are low on ram when you're not. The driver will automatically re-enable auto-negotiation if the line speed and duplex settings are not specified in the command. Red Team Tools. Usually the group id will match the user id. You want to know how many words are present in the file named file1. In Red Hat Enterprise Linux and Fedora by default, each administrative user needs to know the root password, in addition to their own password. It gets you the list of users with last successsful authentications to IDM/IPA server. 5 – Linux users for many years use simple mv commands to copy and rename files. View the Run Download Cacher Tool – Red Hat Enterprise Linux in the List Panel on the right. The Red Hat Enterprise Linux 6 Security Technical Implementation Guide (STIG) is published as a tool to improve the security of Department of Defense (DoD) information systems. One-line command method. The man command itself is extremely easy to use. Our mission is to put the power of computing and digital making into the hands of people all over the world. Red Hat is the world’s leading provider of enterprise open source solutions, including high-performing Linux, cloud, container, and Kubernetes technologies. currently my RHLS subscription completed. Can | The UNIX and Linux Forums. Every Linux desktop environment comes with at least a simple desktop calculator, but most of those simple calculators are just that: a simple tool for simple calculations. Red Hat is the world’s leading provider of enterprise open source solutions, including high-performing Linux, cloud, container, and Kubernetes technologies. It also discusses the steps required. Join GitHub today. Yaakov Selkowitz is another Red Hat engineer working on the Cygwin project. The company has a Linux-based network. Hello there! We are conducting a survey to better understand the user experience in making a first edit. Want to download a Red Hat Ansible Tower trial on your own Linux server or cloud instance? Use this form and we will send you a link. It will display complete user’s info like terminal, time, date, system reboot or boot and kernel version. Red Hat promises that independence will extend to Red Hat's community projects, such as its freely available Fedora Linux distribution which is widely used by developers. Use the applicable command to configure the shutdown action for a shutdown trigger: For halt, power off, and reboot use chshut. We do this so that more people are able to harness the power of computing and digital technologies for work, to solve problems that matter to them, and to express themselves creatively. currently my RHLS subscription completed. Prerequisites: Quick Installation of Apache, MySQL and PHP []. Command Departments Contacts Marine Safety Detachments Cutters Public Affairs Welcome Aboard Regional Exam Center Cutters. Hi Guys, I am a new user in Red Hat Linux. It's possible to get a list of users of active users in IDM/IPA with formatted date and time by running this one liner command. Note: Before running the init script you need to touch the pid file and change the ownership to the php user. Check some of the fun facts we discovered while working on the latest season: https://red. By default, the owner of a filesystem object is the user that created it. last command. Installing Command Line Tool for Red Hat OpenShift PaaS : Video. I am new in linux. Introduction: I have had nothing but trouble with Red Hat's GUI tools for setting date, time, time zone, and ntpd configuration files. Official Red Hat Linux Professional boxed set or the Official Red Hat Linux Professional, International Edition, boxed set. In a previous article, I showed you how to install open source Puppet 5 on Red Hat Linux. This website uses cookies so that we can provide you with the best user experience possible. The RPM Package Manager (RPM) is a powerful package management system capable of. Last updated on: 2017-10-24; Authored by: Rackspace Support; This article describes how to configure a CentOS or Red Hat Enterprise Linux system to use the Fedora Extra Packages for Enterprise Linux (EPEL) repository. It is one of many modules to be delivered as part of the company's. Directory Server; Configuring and managing with command-line utilities. Regards, Vikas. Red Hat reserves the right to change prices in this calculator without notice. Log on to your server via SSH and then complete the following steps for your preferred set up method. The Red Hat Enterprise Linux 6 Security Technical Implementation Guide (STIG) is published as a tool to improve the security of Department of Defense (DoD) information systems. For the introduction to the subject, I recommend you read these two articles "Software costs" and "How to NOT buy Enterprise Software", so that I can…. The objective of this guide is to provide you with some hints on how to check system version of your Redhat Enterprise Linux (RHEL). Azure Red Hat OpenShift provides a flexible, self-service deployment of fully managed OpenShift clusters. d/system-auth file to be updated. Disable auto-negotiation with ethtool on a NIC using the e1000 module. and it has to start network drivers etc. For example, the command ethtool -s eth0 autoneg off disables auto-negotiation, but only temporarily. Our community is broken down by company division, which you can see below. Please try using the below commands through which you can unlock account because of invalid login attempts through ssh Example: To get information about when invalid login attempted server1:/root>pam_tally2 Login Failures Latest failure From joh. The keyword is the exact name of the command or other item for which information is desired. Related commands. Other services include XE Money Transfer, XE Datafeed, and more!. Learn vocabulary, terms, and more with flashcards, games, and other study tools. 2 64bit keytype jp, 115 red hat enterprise linux 6. So we logged a ticket with HP to replace the system board. Organize, analyze and graph and present your scientific data. Official Red Hat Linux Professional boxed set or the Official Red Hat Linux Professional, International Edition, boxed set. In some cases, this has been as extreme as the dateconfig tool refusing to execute, and in other cases the tool ran, but did not change the underlying configuration files. RStudio is an active member of the R community. The Red Hat content embeds many pre-established compliance profiles, such as PCI-DSS, HIPAA, CIA's C2S, DISA STIG, FISMA Moderate, FBI CJIS, and Controlled Unclassified Information (NIST 800-171). Users in the admin group can run command line and graphical applications with elevated. The chown command is used to change the owner and group of files, directories and links. Usually /home/username (eg. Building on the foundation of command line skills covered in System Administration I, students will dive deeper into Red Hat Enterprise Linux to broaden their "tool kits" of administration skills Students who attend Red Hat System Administration I & II will be fully prepared to take the Red Hat Certified. Red Hat Linux authconfig Command and Login/Password Policy Configuration. Due to the constantly shifting sands of the upstream kernel internals, immediate support for the latest kernel versions cannot be guaranteed. 3 registration is faili How do I apply package updates from the Red Hat Ne How can I access Red Hat Network via an HTTP proxy create a volume group; route command for windows; Increasing the size of a LUN; create thin provisioned lun; luns mapped to a initiator group; Clone existing lun; Add wwns to existing. Azure Red Hat OpenShift provides a flexible, self-service deployment of fully managed OpenShift clusters. Red Hat uses group id's in a fairly unique manner for enhanced file security. Let’s take a closer look. For more lsof command examples visit 10 lsof Command Examples in Linux. Relevant releases/architectures: Red Hat Storage Console Agent 2 - noarch. (08/01/1962 - 1971). I’ll be working from both a Liquid Web Core Managed CentOS 7 server, and I’ll be logged in as root. Cheat GFI Costume_BoneRaptor 1 0 0 (in which gives (1) Bone Raptor Costume. It even has useful defaults so you don't have to remember to set the decimal precision to non-zero before you solve 10/3. Installing Percona XtraBackup on Red Hat Enterprise Linux and CentOS¶ Ready-to-use packages are available from the Percona XtraBackup software repositories and the download page. The vulnerability, tracked as CVE-2018-1111, could allow attackers to execute arbitrary commands with. Install the LAMP stack. Log on to your server via SSH and then complete the following steps for your preferred set up method. Installation and Configuration of RHEL 7. The command displays the following output:. Technical change. We have not shown how to manage multiple SSH keys, we have just accepted with yes command to save the key with defaults. In this article I will share a short video tutorial and an updated calculator that can help you compare license cost for IBM MQ vs. To make your database installation complete, you need to perform the following steps, based on your distribution: For RHEL / CentOS / SL / OL 6. For simple formulas, simply type the equal sign followed by the numeric values that you want to calculate and the math operators that you want to use — the plus sign (+) to add, the minus sign (-) to subtract, the asterisk (*) to multiply, and the forward slash (/) to divide. You can, of course, use the UP arrow key to select the last executed commands and hit ENTER to execute them. Explore Redhat Linux job openings in Bangalore Now!. The Official Red Hat Linux Reference Guide contains useful information about your Red Hat Linux system. It even has useful defaults so you don't have to remember to set the decimal precision to non-zero before you solve 10/3. share | improve this answer. NET Core is a cross-platform, open source, and modular. Linux & Unix Basic date format. User's home directory. The Shell: You’ve probably heard mention of the Linux command line. Yaakov Selkowitz is another Red Hat engineer working on the Cygwin project. Use Red Hat Cloud Access to move your Red Hat subscriptions to Azure. In the General Content part of the Navigation Tree, click All Fixlets and Tasks, By Site, and Patches for Red Hat Enterprise Linux. Red Hat CloudForms allows to more quickly deploy and scale Red Hat OpenStack Platform (also known as OSP) private clouds, combine existing IT. d/system-auth file to be updated. Even today, the most advanced management jobs are issued from the command line. To open any file from the command line with the default application, just type open followed by the filename/path. actually i am interesed in learning and implement on Linux OS. 0 on Monday at Red Hat DevNation. Army Materiel Command. Hi Guys, I am a new user in Red Hat Linux. Start free. Listing Details for House, Apartment, Condo, Villa & Lots, at 60 RED BANK Hat Field, Jamaica. Introduction []. MLS No 37161 - Build your dream home on this fairly level lot which is located on the outskirts of Mandeville in the quiet neighbourhood of Redbank, Hatfield. Yaakov Selkowitz is another Red Hat engineer working on the Cygwin project. The command displays the following output:. Let’s take a closer look. Red Hat Linux Networking Fundamental Network Configuration and Troubleshooting Pete Nesbitt March 2006 The information presented should act as a guide to Red Hat Linux networking. Wireshark for Red Hat Enterprise Linux. Our mission is to put the power of computing and digital making into the hands of people all over the world. Red Hat reserves the right to change prices in this calculator without notice. Environment:- Red Hat Enterprise Linux 5. Today, I’m going to show you how to install Puppet Enterprise, which comes with extra features. The fastest way for developers to build, host and scale applications in the public cloud. That's what the Bash shell script calc does—offer a simple, user-friendly command-line calculator. Skins and Costumes can be spawn into the game with admin command: Cheat GFI Costume_Top 1 0 0 (in which gives (1) Top Hat skin. x and as you can see from the output below, by default no HugePages are defined. Department of the Army. , read, write and execute) for that object. Felix Wilhelm from the Google security team discovered a critical remote command injection. #passwd rakesh. How to Rename files using the mv command on Red Hat 7. Note: Before running the init script you need to touch the pid file and change the ownership to the php user. com Hard drive info hdparm –i /dev/hda Reboot shutdown –r now or. All formula entries begin with an equal sign (=). How to Set cron job in Linux Server step by step - Red Hat Linux 7 Basics. Its basic syntax is man [option(s)] keyword(s) man is most commonly used without any options and with only one keyword. We have observed many new changes on Red Hat Enterprise Linux and CentOS 7. I want to know the exact command to restart a red hat linux server 6. Find file Copy path bachmanna Add files via upload c8763e0 Jun 21, 2018. mp4 Edit: as per Johnny Drama's comment below, if you want to be able to open files in a certain application, put -a followed by the application's name in quotes between open and the file. Participate in activities like Sanctum Sprint, prove yourself in one of the races or join the treasure hunt. Red Hat Product Security has rated this update as having a security impact of Moderate. However, these users can't execute. Cheat GFI Costume_BoneRaptor 1 0 0 (in which gives (1) Bone Raptor Costume. question about rm command on Red Hat 9. A Google security researcher has discovered a critical remote command injection vulnerability in the DHCP client implementation of Red Hat Linux and its derivatives like Fedora operating system. Wireshark for Red Hat Enterprise Linux. This calculator slash converter can assist in the conversion of IPv4 type IP numbers to IPv6 notation. vCloud Director. It even has useful defaults so you don't have to remember to set the decimal precision to non-zero before you solve 10/3. Red Hat Linux cheat sheet commands examples RHEL. Example: open ~/Desktop/filename. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful. A few of our professional fans. The syntax of the command is as below. 2 64bit keytype us. Red Hat OpenShift. There's more to Red Hat than the fact it's now part of IBM. 70 per month. Note: Ansible Tower must be installed on RHEL 7, CentOS 7, or Ubuntu 16. 0 on Monday at Red Hat DevNation. The Cygwin DLL currently works with all recent, commercially released x86 32 bit and 64 bit versions of Windows, starting with Windows Vista. The man command itself is extremely easy to use. The Shell: You’ve probably heard mention of the Linux command line. You can use the simple calculator below to see basic and drill pay for a Command Sergeant Major, or visit our Army pay calculator for a more detailed salary estimate. Red Hat Command Center, first reported by CRN earlier this month, is a systems management module that plugs into Red Hat Network. In the GUI, what is the line that connects certain related packets together? Auto-save by using consol. xml for details of the group it belongs to. What a week! If you didn’t hear, we released. After February 28th, 2017: 116 red hat enterprise linux 6. Hi All, could you please share awk and netstat command with detailed explanation or book. Red Hat is the world’s leading provider of enterprise open source solutions, including high-performing Linux, cloud, container, and Kubernetes technologies. Participate in activities like Sanctum Sprint, prove yourself in one of the races or join the treasure hunt. 79 - Operation Red Hat : Men and a Mission - Department of Defense. In a previous tip, SQL Server on Linux - Part1, we saw how to build a Red Hat Enterprise Linux 7. I am new in linux. The fastest way for developers to build, host and scale applications in the public cloud. command line usage? Meaning of values for results of "-e frame. 1 Server pdf manual download. Each terminal window or shell prompt stores a separate set of commands. com is the place to go to get the answers you need and to ask the questions you want. SCAP content for evaluation of Red Hat Enterprise Linux 7. Newsletter Contact History Ship Specs District Staff. Red Hat reserves the right to change prices in this calculator without notice. This Engram calculator tool for ARK: Survival Evolved can help you to distribute your Engram Points (EP) wisely. Jun 12 04:12:01 linnux kernel: scsi 1:0:5:0: timing out command, waited 22s. If TARGET is a directory, "cp" will create a copy of SOURCE in that directory with the same name as the source. On CentOS 7 and RHEL 7, on doing minimal installation we have not found netstat command. If u command will not succeed, the return value will remain in object. Passwords are transmitted in plain text when you use Telnet. Is it worth investigating for Red Hat based datacenters? And … is a Red Hat Linux, maintained by Oracle still a Red Hat Linux, or do you call it Oracle Linux with RHEL compatible kernel? Lots of questions. We believe free and open source data analysis software is a foundation for innovative and important work in science, education, and industry. This calculator is designed to assist enterprises compare the projected costs of growing and maintaining a current Unix based server environment with the costs of migrating to a Red Hat. 6; Attaching the screen shot for yum command and rpm -qa command executed on the system; Regarding the repository in the installation the unix team informed me that there is no yum configured on the system. 2 64bit keytype jp, 116 red hat enterprise linux 6. Focus on your application development, as the master, infrastructure and application nodes are patched, updated and monitored by Microsoft and Red Hat. In Red Hat Enterprise Linux and Fedora by default, each administrative user needs to know the root password, in addition to their own password. That’s why we create new one every time we want to execute new command, and left previous one to be gc’d (Garbage Collected). Single-tenant, high-availability Kubernetes clusters in the public cloud. so the 3 no command is wrong. Each terminal window or shell prompt stores a separate set of commands. Command Staff Sector Ohio Valley. Other services include XE Money Transfer, XE Datafeed, and more!. RPM Package Manager. To get the netstat command on RHEL 7 and CentOS 7. It can open, edit, and save plain text files. Linux file and directory permissions. Is it worth investigating for Red Hat based datacenters? And … is a Red Hat Linux, maintained by Oracle still a Red Hat Linux, or do you call it Oracle Linux with RHEL compatible kernel? Lots of questions. currently my RHLS subscription completed. How To Change Timezone on CentOS and RedHat 7/6/5 systems. For the introduction to the subject, I recommend you read these two articles "Software costs" and "How to NOT buy Enterprise Software", so that I can…. This installation guide only supports 64-bit systems. In Part 2 of this series, we will walk thru how. The proof of concept for the command injection. Red Hat Enterprise Linux is released in server editions for x86, x86_64, Itanium, PowerPC and IBM System z architectures, and desktop editions for x86 and x86_64 processors. In Red Hat Enterprise Linux and Fedora by default, each administrative user needs to know the root password, in addition to their own password. This will match the version on your modules with the kernel version on the boot disk. 5-15), up to Red Hat Enterprise Linux 5 (Linux version 2. It is one of many modules to be delivered as part of the company's. Learn how. In bash, this command will generate a directory listing with ls, and redirect the output to a file which includes the current day, month, and year in the file name. Is there another non-interactive command (not necessarily in a Python module) that I can run from the command line to achieve this, without having to install any extra packages? (Or if I do, something super-minimal. The Official Red Hat Linux Reference Guide contains useful information about your Red Hat Linux system. I'm not sure what the maximum length for this field is, but try to keep it reasonable (under 30 characters). Find file Copy path bachmanna Add files via upload c8763e0 Jun 21, 2018. Corinna Vinschen is the current project lead. A few of our professional fans. No problems were found. That last command will give you your admin. RStudio is an active member of the R community. Red Hat CloudForms 4 takes command of Azure and containers Red Hat's hybrid cloud management solution adds Azure and container tech to an arsenal of supported technologies. Could you please Tell me the command to find the number of cores in red hat box? I have tried cat cat /proc/cpuinfo | grep processor | wc -l command to find the number of processers. Focus on your application development, as the master, infrastructure and application nodes are patched, updated and monitored by Microsoft and Red Hat. Note: The day of a command's execution can be specified by two fields - day of month, and day of week. It also discusses the steps required. Useful command to troubleshoot. It will display complete user’s info like terminal, time, date, system reboot or boot and kernel version. It's possible to get a list of users of active users in IDM/IPA with formatted date and time by running this one liner command. last command. , aren't *), the command will be run when either field matches the current time. Environment:- Red Hat Enterprise Linux 5. Visit each division homepage for a list of product communities under each. Build, deploy and manage your applications across cloud- and on-premise infrastructure. Full name of user. Command Line Usage Synopsis. The Oracle 19c Grid installation manual does not mention Red Hat 8 as an allowable operating system. Boom | Submitted On November 29, 2008 The Linux fdisk and parted commands are both used to start "utility" programs that are used to do hard disk partitioning tasks. Managing Groups via Command-Line Tools - Red Hat Customer Portal. Apply to 262 Redhat Linux Jobs in Bangalore on Naukri. Red Hat OpenShift Online. Now I want to change my present directory. This cheat. How To Change Timezone on CentOS and RedHat 7/6/5 systems. Note: The day of a command's execution can be specified by two fields - day of month, and day of week. Want to download a Red Hat Ansible Tower trial on your own Linux server or cloud instance? Use this form and we will send you a link. Red Hat Enterprise Linux is a Linux distribution developed by Red Hat for the commercial market. IPv6 allows approximately 340 undecillion addresses, but switching from IPv4 to IPv6 may be a difficult process. if yum not work then try to set proxy URL to the proxy server in file /etc/yum. CGC CYPRESS. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. 17, 2018 /PRNewswire/ -- WLinux Enterprise is the first product to support the industry-standard Red Hat Enterprise Linux on Windows Subsystem for Linux, allowing companies to. More details. Real news, curated by real humans. NET Core is a cross-platform, open source, and modular. IBM or Drools/Red Hat JBoss BRMS - Whose Rules Rule? WebSphere Message Broker vs. To clear your command history, type history -c. #vi /etc/passwd. This only changes the permissions for the owner of the file. Using dig command you can query DNS name servers for your DNS lookup related tasks. As root, type in one of the following three commands to generate your key: 3. This means you're free to copy and share these comics (but not to sell them). Due to policies for Red Hat family distributions, the PostgreSQL installation will not be enabled for automatic start or have the database initialized automatically. org, a friendly and active Linux Community. Red Hat Linux Networking Fundamental Network Configuration and Troubleshooting Pete Nesbitt March 2006 The information presented should act as a guide to Red Hat Linux networking. Use this Linux tutorial for beginners to learn Red Hat Linux and CentOS free! Get you started with the basics even if you have no experience using Linux! Take the full course free at https. You should have the VNC server automatically running when Red Hat Linux boots up at runlevel 5. Source: Extending a logical volume in a virtual machine running Red Hat or Cent OS (1006371) | VMware KB By default installation, Linux virtual machine (Fedora, RHEL or CentOS) has two partitions, one for swapping, and the other one is a lv (Logic Volume) partition. Discover the new Toyota Prius - the world's first mainstream hybrid car. However, these users can't execute. The driver will automatically re-enable auto-negotiation if the line speed and duplex settings are not specified in the command. View and Download Red Hat 8. xml for details of the group it belongs to. Plain text files are files that contain text without any font or style formatting applied to it, such as system logs and configuration files. 0: Note: For newer OS revisions, use the inbox driver provided by the OS vendor. However, there are also. I've run into a frustrating problem with the rm command on Red Hat 9. Red Hat CloudForms allows to more quickly deploy and scale Red Hat OpenStack Platform (also known as OSP) private clouds, combine existing IT. Useful command to troubleshoot. Kindly suggest me any book or URL.