nixCraft: Linux Tips, Hacks, Tutorials, And Ideas In Blog Format

nixCraft: Linux Tips, Hacks, Tutorials, And Ideas In Blog Format - 12de

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Dell announces new Linux XPS 13 developer edition 7390 laptop

Dell recently announced the new XPS 13 developer edition powered by Ubuntu Linux and Intel’s 10th generation Comet Lake CPUs. The new device will soon be available in the US, Canada, and European markets. It is good news for both developers and Linux enthusiast who wants Linux laptop with preloa...

BASH Fix Display and Console Garbage and Gibberish on a Linux / Unix / macOS

Sometimes my R & D result in the weird output on the screen. For example, accidentally I run cat command over binary file – cat /sbin/*. You will be not able to access your bash/ksh/zsh based terminal. It will be full of wired character sequences that can lock down your display. ...

How to install htop on RHEL 8 using yum

I am a new user of Red Hat Enterprise Linux 8. How do I install htop on RHEL 8 using the yum command?Introduction – htop is nothing but Interactive process viewer for RHEL (Red Hat Enterprise) 8 Linux . It is just like default top command with an additional set of options and better display on...

Explain: {,} in cp or mv Bash Shell Commands

I often see commands as follows posted on blog or forumscp /etc/httpd/httpd.{,.bakup}ORmv resume{z,}.docWhat is the purpose of {,} in Linux and Unix shell commands?{} is nothing but brace expansion and usually used to generate combinations. From the GNU/bash man page:...

FreeBSD Display Information About The System Hardware

FreeBSD comes with different utilities, which can be used to gather the information as per your needs. The uname command is used to print system information, and dmesg command is used to print kernel ring buffer information. The sysctl command is use to configure kernel parameters at runtime as ...

How to use yum-cron to automatically update RHEL/CentOS Linux

The yum command line tool is used to install and update software packages under RHEL / CentOS Linux server. I know how to apply updates using yum update command line, but I would like to use cron to update packages where appropriate manually. How do I configure yum to install software patches/...

Ubuntu Linux Add a User To Group www-data ( Apache Group )

How do I add a user to the Apache group called www-data under Ubuntu or Debian Linux server operating systems using the command line option?You need to use the useradd command to add a user to the group called www-data under Ubuntu or Debian Linux system. This page shows how to add a user to an ex...

How To Install EPEL Repo on an RHEL 8.x

How do I install the extra repositories such as Fedora EPEL repo on an Red Hat Enterprise Linux server version 8.x?Introduction – You can easily install various packages by configuring an RHEL 8.x system to use Fedora EPEL repos and third party packages. Please note that these packages are not off...

How to Install and Configure latest version of Ansible on Ubuntu Linux

I am a new Ubuntu Linux user. How do I install Ansible on a Ubuntu Linux 16.04/18.04 LTS or 17.10/18.10 desktop control machine?Introduction: Ansible is a simple and easy to use IT automation tool. One can use Ansible to deploy applications and systems/VM/containers. Ansible configuratio...

Linux Find If Processor (CPU) is 64 bit / 32 bit [long mode ~ lm]

I am a new Linux system user. How do I determine if my CPU is 64bit or not on a Linux operating systems using command line option? How can I check Linux kernel is in 32 bit or 64 bit mode?You need to use the following commands to find out information about Linux kernel and CPU architecture inclu...

How to add bash auto completion in RHEL 8 (Red Hat Linux)

I set up a new RHEL 8 VM from cloud images, but my auto-completion of bash shell commands are not working. How do I enable autocomplete feature in RHEL 8 (Red Hat Enterprise Linux 8)? How do I write simple bash completion code in RHEL 8?Introduction: Bash is an sh-compatible command lang...

List or Check Installed Linux Kernels using command line

How do I list all installed kernel on Linux operating system? How do I find out current kernel version?You can use standard package listing command to list installed Linux kernels on your Linux operating systems. This page shows how to list kernel using the command line. List or Check Installed...
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