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I am a new Linux user. How do I display the process on the Linux based server or desktop/laptop in easy to read tree format using bash shell prompt? Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post Linux/Unix: pstree Command Examples: See A Tree Of Processes appeared first on nixCraft. 2024-05-12T19:29:49Z 2024-05-12T19:29:49Z Vivek Gite

The Debian Linux 12 backports repository offers updated versions of software packages for Debian Stable releases. These packages are sourced from Testing (and sometimes Unstable) branches of Debian, and then optimized and recompiled to function on the current Stable release, such as Bookworm. Let us see how to install and use Debian Linux 12 "Bookworm" Backports repository. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to enable Debian 12 Backports repository appeared first on nixCraft. 2024-05-11T11:02:39Z 2024-05-11T11:02:39Z Vivek Gite

I need to copy or clone file ownership and permissions from another file on Linux. Is there a bash command line option to clone the user, group ownership and permissions on a file from another file on Linux operating system? Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to copy permissions from one file to another on Linux appeared first on nixCraft. 2024-05-08T22:06:06Z 2024-05-08T22:06:06Z Vivek Gite

If you are writing a Bash shell script, you should read command-line arguments into an array for some time. This allows us to process any number of arguments provided when the script is run. This makes the script adaptable to different use cases. Instead of dealing with fixed variables like $1, $2, $3, etc., you can work with any number of arguments more dynamically using bash for loop or bash while loop, depending upon your needs. Arrays make it simple to loop through each argument and perform operations on them, whether basic printing or complex processing. Bash provides a mapfile (readarray command) internal built-in command to read lines from a file into an array variable. Let us see how to use mapfile to read all command line arguments into an array. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post A Bash Script to Read All Command Line Arguments into an Array: Simplify Argument Handling appeared first on nixCraft. 2024-05-07T10:40:08Z 2024-05-07T10:40:08Z Vivek Gite

CentOS, RHEL (Red Hat Enterprise Linux), Fedora and other clones of RHEL, such as Oracle, Alma, and Rocky, offer support for version pinning. This feature allows developers and system administrators to lock a particular package to a specific version, preventing it from being automatically updated by yum or dnf commands. Sometimes, it is necessary to protect packages from being updated to newer versions to avoid incompatibility issues with your applications. For example, you can lock down PHP version 8.3.6 and avoid using updated PHP version 8.4. Let us see how to lock a package to a specific version, only exclude a package from yum update or dnf update on a CentOS, RHEL, Fedora, and friends. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to Pin Versions in Yum or Dnf for RHEL or CentOS Linux appeared first on nixCraft. 2024-05-07T09:01:47Z 2024-05-07T09:01:47Z Vivek Gite

Here's a quick tip for vim users. You can perform find and replace operations within a visual selection in Vim for text or code block. Visual selection for finding and replacing text in Vim allows developers and Linux/Unix users precise and efficient text editing. It's handy when you want to change specific portions of text or code blocks within a larger file without affecting other occurrences. This method required to minimizing manual search and reducing the risk of unintended code or text modifications. Let us see how to find and replace in Vim visual mode selection. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to perform find and replace operations within a visual selection in Vim appeared first on nixCraft. 2024-05-07T06:14:33Z 2024-05-07T06:14:33Z Vivek Gite

Unhide is a little handy forensic tool to find hidden processes and TCP/UDP ports by rootkits / LKMs or by another hidden technique. This tool works under Linux, Unix-like system, and MS-Windows operating systems. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to find hidden processes and ports on Linux/Unix/Windows appeared first on nixCraft. 2024-05-07T05:05:51Z 2024-05-07T05:05:51Z Vivek Gite

Bash is a command language interpreter compatible with sh. It can execute commands read from a file or keyboard. On Debian Linux, bash-completion is a set of shell functions that uses Bash's programmable completion feature. This page provides instructions on installing and enabling Bash auto-completion on Debian Linux versions 10, 11, and 12 to increase productivity by writing custom bash code. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to add bash auto completion in Debian Linux appeared first on nixCraft. 2024-05-06T15:51:25Z 2024-05-06T15:51:25Z Vivek Gite

Recently, I had a learning experience with cron jobs and acme.sh. acme.sh is an excellent tool that simplifies the management of Let's Encrypt TLS (SSL) certificates. It makes obtaining and renewing these essential security certificates for your web server easier. Recently, I moved my server from Linode to AWS, which was a new environment for me. Initially, everything appeared to be working correctly, and I assumed everything was running smoothly. However, I forgot to migrate the cron job that acme.sh uses to renew the certificate automatically. This oversight caused my Let's Encrypt certificates to expire, resulting in security warnings and potential disruptions for visitors to my website. Opps! Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to add cron job entry for acme.sh appeared first on nixCraft. 2024-05-03T06:43:12Z 2024-05-03T06:43:12Z Vivek Gite

{nixCraft Patreon supporters content}Below is a sneak peek of this content! Ubuntu 24.04 LTS (Noble Numbat) was launched on April 25th, 2024. This new version will be supported for five years until June 2029. The armhf architecture now provides support for the Year 2038 problem. The upgrades include significant updates to core packages like Linux kernel, systemd, Netplan, […]The post How to Upgrade Ubuntu 22.04 to 24.04 LTS: A Complete Guide appeared first on Opensource Flare✨. 2024-04-26T18:25:08Z 2024-04-26T18:25:08Z Vivek Gite

Ubuntu 24.04 LTS (Noble Numbat) was launched on April 25th, 2024. This new version will be supported for five years until June 2029. The armhf architecture now provides support for the Year 2038 problem. The upgrades include significant updates to core packages like Linux kernel, systemd, Netplan, toolchain upgrades for better development support, enhanced security measures, and performance optimizations. It also has an updated GNOME desktop environment and other default applications. Let us see how to upgrade Ubuntu 22.04 LTS to Ubuntu 24.04 LTS using the CLI over ssh-based session. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to Upgrade Ubuntu 22.04 to 24.04 LTS: A Complete Guide appeared first on nixCraft. 2024-04-26T08:33:21Z 2024-04-26T08:33:21Z Vivek Gite

AWS SES (Amazon Simple Email Service) is a cloud-based email-sending service that is both reliable and cost-effective. This service is offered by Amazon Web Services. Postfix is a popular email server for Debian and Unix-like systems. It is an open-source Mail Transfer Agent (MTA) responsible for routing and delivering emails. Debian Linux is a widely used Linux distribution known for its stability and user-friendliness for server usage. Let us see how to integrate AWS SES with the Postfix MTA on Debian Linux version 11/12. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How to configure AWS SES with Postfix MTA on Debian Linux appeared first on nixCraft. 2024-04-19T07:04:06Z 2024-04-19T07:04:06Z Vivek Gite

When you run the sudo apt update, you may see the following message or error on a Debian Linux: Err:5 http://deb.debian.org/debian buster-backports Release 404 Not Found [IP: 146.75.34.132 80] Reading package lists... Done E: The repository 'http://deb.debian.org/debian buster-backports Release' no longer has a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. Here is how to fix this issue. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post The repository ‘http://deb.debian.org/debian buster-backports Release’ no longer has a Release file. appeared first on nixCraft. 2024-04-14T20:42:01Z 2024-04-14T20:42:01Z Vivek Gite

You can find the timezone in Linux using the command line. The easiest way to do this is to type the "timedatectl" command and look for the "timezone" line when using modern Linux distros with systemd. There are other commands and ways to temporarily switch to a new timezone for date calculations. Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit The post How do I find out my timezone in Linux? appeared first on nixCraft. 2024-04-06T01:06:44Z 2024-04-06T01:06:44Z Vivek Gite

A UK-based company has successfully powered up a microwave-sized space factory in orbit, proving it can run a 1,000C furnace to manufacture ultra-pure semiconductor materials in microgravity. "The work that we're doing now is allowing us to create semiconductors up to 4,000 times purer in space than we can currently make here today," says Josh Western, CEO of Space Forge. "This sort of semiconductor would go on to be in the 5G tower in which you get your mobile phone signal, it's going to be in the car charger you plug an EV into, it's going to be in the latest planes." The BBC reports: Conditions in space are ideal for making semiconductors, which have the atoms they're made of arranged in a highly ordered 3D structure. When they are being manufactured in a weightless environment, those atoms line up absolutely perfectly. The vacuum of space also means that contaminants can't sneak in. The purer and more ordered a semiconductor is, the better it works. [...] The company's mini-factory launched on a SpaceX rocket in the summer. Since then the team has been testing its systems from their mission control in Cardiff. Veronica Viera, the company's payload operations lead, shows us an image that the satellite beamed back from space. It's taken from the inside of the furnace, and shows plasma - gas heated to about 1,000C -- glowing brightly. [...] The team is now planning to build a bigger space factory -- one that could make semiconductor material for 10,000 chips. They also need to test the technology to bring the material back to Earth. On a future mission, a heat shield named Pridwen after the legendary shield of King Arthur will be deployed to protect the spacecraft from the intense temperatures it will experience as it re-enters the Earth's atmosphere.

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Two years after launch Intel Meteor Lake offers 93% of original performance on Linux, tests show  VideoCardz.com

Zorin OS says Windows users drove nearly 1M downloads, so I installed it to see why  How-To Geek

NASA is closing its largest research library at the Goddard Space Flight Center amid budget cuts and campus consolidation, putting tens of thousands of largely non-digitized historical and scientific documents at risk of being warehoused or discarded. The New York Times reports: Jacob Richmond, a NASA spokesman, said the agency would review the library holdings over the next 60 days and some material would be stored in a government warehouse while the rest would be tossed away. "This process is an established method that is used by federal agencies to properly dispose of federally owned property," Mr. Richmond said. The shutdown of the library at NASA's Goddard Space Flight Center in Greenbelt, Md., is part of a larger reorganization under the Trump administration that includes the closure of 13 buildings and more than 100 science and engineering laboratories on the 1,270-acre campus by March 2026. "This is a consolidation not a closure," said NASA spokeswoman Bethany Stevens. The changes were part of a long-planned reorganization that began before the Trump administration took office, she said. She said that shutting down the facilities would save $10 million a year and avoid another $63.8 million in deferred maintenance. Goddard is the nation's premiere spaceflight complex. Its website calls it "the largest organization of scientists, engineers, and technologists who build spacecraft, instruments, and new technology to study Earth, the Sun, our solar system, and the universe." [...] The library closure on Friday follows the shutdown of seven other NASA libraries around the country since 2022, and included three libraries this year. As of next week, only three -- at the Glenn Research Center in Cleveland, the Ames Research Center in Mountain View, Calif., and the Jet Propulsion Laboratory in Pasadena, Calif. -- will remain open.

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FOSS Weekly #26.01: Distros of 2026, Terminal Customization, CachyOS Server Edition and More Linux Stuff  It's FOSS

An anonymous reader quotes a report from the New York Times: For a while, it seemed the notion that light drinking was good for the heart had gone by the wayside, debunked by new studies and overshadowed by warnings that alcohol causes cancer. Now the American Heart Association has revived the idea in a scientific review that is drawing intense criticism, setting off a new round of debate about alcohol consumption. The paper, which sought to summarize the latest research and was aimed at practicing cardiologists, concluded that light drinking -- one to two drinks a day -- posed no risk for coronary disease, stroke, sudden death and possibly heart failure, and may even reduce the risk of developing these conditions. Controversy over the influential organization's review has been simmering since it was published in the association's journal Circulation in July. Public health groups and many doctors have warned on the basis of recent studies that alcohol can be harmful even in small amounts. Groups like the European Heart Network and the World Heart Federation have stressed that even modest drinking increases the odds of cardiovascular disease. "It says in all our guidelines right now, 'If you don't drink, don't start.' There's not enough evidence to suggest conclusively that it prevents heart disease," said Dr. Mariell Jessup, the chief science and medical officer at the heart association, adding that the review was not meant to serve as a guideline and that the group's advice to patients has not changed. Critics argue that suggesting any heart-health benefits from alcohol is dangerous given its well-documented risks, and they accuse the heart association of selectively weighing studies. They also say a past tie to the alcohol industry by one author should have disqualified him from participating. "The cardiovascular benefits of moderate drinking are questionable at best," said Dr. Elizabeth Farkouh, an internist and alcohol researcher. "But even if there was a benefit, there are so many other ways to reduce cardiovascular risk that don't come with an associated cancer risk." The new review's conclusion is also at odds with the CDC's guidance on alcohol, which notes that "even moderate drinking may increase your risk of death and other alcohol-related harms, compared to not drinking." It also seems to diverge from the heart association's diet and lifestyle recommendation to consume "limited or preferably no alcohol," along with its 2023 statement that recent research suggests there is "no safe level of alcohol use."

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