how yum works in linux?
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YUM (Yellowdog Updater Modified) is an open source command-line as well as graphical based package management tool for RPM (RedHat Package Manager) based Linux systems. It allows users and system administrator to easily install, update, remove or search software packages on a systems.
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Yum automatically refreshes the list of packages, whilst with apt-get you must execute a command 'apt-get update' to get the fresh packages. Another difference is upgrading all the packages.
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When you run yum search, the command searches for package name, summaries and description. But yum list only looks for the search term in the package name.
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whoami command in Linux with example. whoami command is used both in Unix Operating System and as well as in Windows Operating System. It is basically the concatenation of the strings “who”,”am”,”i” as whoami. It displays the username of the current user when this command is invoked.
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Memory Management in Windows uses Tree data structure and Linux uses Linked List data structure. Windows uses Cluster demand Paging where the pages are bought only when they are needed but simultaneously. Linux uses Demand paging where the pages will not be swapped from disk to RAM until they are needed.
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['yum install rsh-server.', "Restart the rsh daemon (I'm assuming here you don't need rlogin and/or rexec ). systemctl restart rsh.socket.", '(Optional) Set the daemon to auto-start. systemctl enable rsh.socket.']
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In RHEL 6 and later, yum install accepts both package names and local filenames, so localinstall is no longer necesary, but it's included for backward compatibility. In RHEL 8, dnf localinstall is simply an alias for dnf install .
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['Prepare your machine. yum -y update. yum -y groupinstall "GNOME Desktop" "Development Tools" ... ', 'Reboot your machine to make sure you are running the newest kernel.', 'Reboot your machine.', 'Reboot your machine.', 'Run the CUDA installer. sh cuda_*.run. ... ', 'To add CUDA to your environment add the following files.']
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["Step-2 Insert the RHEL 6 dvd into DVD ROM and Mount in'/media'", "Step-3 Create 'yum' server.", 'Step-4 Now install syslinux, xinetd, tftp-server, dhcp, system-config-kickstart, nfs-utils, using yum.', 'Step-6 Configure TFTP Server.']
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CentOS is a community-developed and supported alternative to RHEL. It is similar to Red Hat Enterprise Linux but lacks the enterprise-level support. CentOS is more or less a free replacement for RHEL with few minor configuration differences. ... CentOS does tend to run a little behind RHEL with releases.
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1 — Enable GPG signature-checking on all packages in all repositories, including local package installation. gpgcheck=1 is the default, and thus all packages' signatures are checked. If this option is set in the [main] section of the /etc/yum.
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Like many Linux-based applications, Apache functions through the use of configuration files. They are all located in the /etc/apache2/ directory.
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The easiest way to zip a folder on Linux is to use the “zip” command with the “-r” option and specify the file of your archive as well as the folders to be added to your zip file. You can also specify multiple folders if you want to have multiple directories compressed in your zip file.
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Yum is a package manager and rpms are the actual packages. With yum you can add or remove software. The software itself comes within a rpm. The package manager allows you to install the software from hosted repositories and it will usually install dependencies as well.
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What is the difference between yum update and upgrade? “yum update” updates all the presently installed packages to their latest versions that are available in the repositories and “yum upgrade” performs the same action as “yum update”, but once finished it also removes all of the obsolete packages from the system.
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['Make sure, you have VMWare tools installed on linux VM.', 'Select the file (want to copy)', 'Ctrl + C.', 'Ctrl + V to paste in your host machine "Windows 7"']
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['Each file in Linux has a corresponding File Descriptor associated with it.', 'The keyboard is the standard input device while your screen is the standard output device.', '">" is the output redirection operator. ">>" ... ', '"<" is the input redirection operator.', '">&"re-directs output of one file to another.']