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What is transparent hugepage (THP) and how to check THP usage per process in Linux (Explained)

Hugepages is a feature that allows the Linux kernel to utilise the multiple page size capabilities of modern hardware architectures. Memory is managed in blocks known as pages. A page is 4096 bytes. 1MB of

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Tutorial/Cheatsheet: Begineer's Guide to Understanding Device Mapper Multipath for Linux

Before starting with going into the various commands we use for multipath let me give you a overview of multipath Without DM Multipath, each path from a server node to a storage controller is treated

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10 examples to customize or change the login prompt using PS1 variable of bash shell in Linux

After your Linux node boots up and once you enter your username and password, you are provided with a shell prompt which looks something like below my-linux-setup:~ # When  executing interactively, bash displays the primary

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Tutorial / Cheatsheet:12 practical examples for different sudo access based scenarios in RHEL 7 / CentOS 7

Below are some of the scenarios I can think of where sudoers file can be used, if you have any more questions for which you want any help of post us here in the comment

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Tutorial / Cheatsheet: 11 examples to use systemctl to manage unit files and service in RHEL 7 / CentOS 7

In my last article I have given an overview of systemd with examples. If you want to have a background of migration from sysvinit scripts which we were using RHEL 6 and earlier to systemd used in

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10 Basic examples of SED to perform per line action (print/delete)

In this article I will show you various sed expressions which can be used and combined to print or delete specific line from a file IMPORTANT NOTE: My examples provided are only to print the

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15 practical examples of rpm command usage in Linux

I have written a blog explaining different fields of an rpm. To understand a rpm and all its fields follow the below link Understanding RPM package   Here I have tried to summarize a list

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Understanding UMASK value in Linux

What is umask value? In computing, umask is a command that determines the default permission to be set on any file or directory is created. It also refers to a function that sets the mask,

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