LinuxWebLog.com

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

In July Google promised to scale the CO2 batteries of "Energy Dome" as a long-duration energy storage solution. Now IEEE Spectrum visits its first plant in Sardinia, where 2,000 tonnes of carbon dioxide power a turbine generating 20 MW over 10 hours — storing "large amounts of excess renewable energy until it's needed..." "Google likes the concept so much that it plans to rapidly deploy the facilities in all of its key data-center locations in Europe, the United States, and the Asia-Pacific region." Developed by the Milan-based company Energy Dome, the bubble and its surrounding machinery demonstrate a first-of-its-kind "CO2 Battery," as the company calls it... And in 2026, replicas of this plant will start popping up across the globe. We mean that literally. It takes just half a day to inflate the bubble. The rest of the facility takes less than two years to build and can be done just about anywhere there's 5 hectares of flat land. The first to build one outside of Sardinia will be one of India's largest power companies, NTPC Limited. The company expects to complete its CO2 Battery sometime in 2026 at the Kudgi power plant in Karnataka, in India. In Wisconsin, meanwhile, the public utility Alliant Energy received the all clear from authorities to begin construction of one in 2026 to supply power to 18,000 homes... The idea is to provide electricity-guzzling data centers with round-the-clock clean energy, even when the sun isn't shining or the wind isn't blowing. The partnership with Energy Dome, announced in July, marked Google's first investment in long-duration energy storage... CO2 Batteries check a lot of boxes that other approaches don't. They don't need special topography like pumped-hydro reservoirs do. They don't need critical minerals like electrochemical and other batteries do. They use components for which supply chains already exist. Their expected lifetime stretches nearly three times as long as lithium-ion batteries. And adding size and storage capacity to them significantly decreases cost per kilowatt-hour. Energy Dome expects its LDES solution to be 30 percent cheaper than lithium-ion. China has taken note. China Huadian Corp. and Dongfang Electric Corp. are reportedly building a CO2-based energy-storage facility in the Xinjiang region of northwest China. Google's senior lead for energy storage says they like how Energy Dome's solution can work in any region. "They can really plug and play this." And they expect Google to help the technology "reach a massive commercial stage."

Read more of this story at Slashdot.

9to5Linux Weekly Roundup: December 21st, 2025  9to5Linux

Linux 6.19-rc2 Released Following A Quiet Week  Phoronix

Long-time Slashdot reader destinyland wonders if "gifts for geeks" is the next big consumer demographic: For this year's holiday celebrations, Hallmark made a special Christmas tree ornament, a tiny monitor displaying screens from the classic video game "Oregon Trail." ("Recall the fun of leading a team of oxen and a wagon loaded with provisions from Missouri to the West....") Top sites and major brands are now targeting the "tech" demographic — including programmers, sysadmins and even vintage game enthusiasts — and when Hallmark and Amazon are chasing the same customers as GitHub and Copilot, you know there's been a strange yet meaningful shift in the culture... While AI was conquering the world, GitHub published its "Ultimate gift guide for the developer in your life" just as soon as doors opened on Black Friday. So if you're wondering, "Should I push to production on New Year's Eve?" GitHub recommends their new "GitHub Copilot Amazeball," which it describes as "GitHub's magical collectible ready to weigh in on your toughest calls !" Copilot isn't involved — questions are randomly matched to the answers printed on the side of a triangle-shaped die floating in water. "[Y]ou'll get answers straight from the repo of destiny with a simple shake," GitHub promises — just like the Magic 8 Ball of yore. "Get your hands on this must-have collectible and enjoy the cosmic guidance — no real context switching required!" And GitHub's "Gift Guide for Developers" also suggests GitHub-branded ugly holiday socks and keyboard keycaps with GitHub's mascots. But GitHub isn't the only major tech site with a shopping page targeting the geek demographic. Firefox is selling merchandise with its new mascot. Even the Free Software Foundation has its own shop, with Emacs T-shirts, GNU beanies and a stuffed baby gnu ("One of our most sought-after items ... "). Plus an FSF-branded antisurveillance webcam guard. Maybe Dr. Seuss can write a new book: "How the Geeks Stole Christmas." Because this newfound interest in the geek demographic seems to have spread to the largest sites of all. Google searches on "Gifts for Programmers" now point to a special page on Amazon with suggestions like Linux crossword puzzles. But what coder could resist a book called " Cooking for Programmers? "Each recipe is written as source code in a different programming language," explains the book's description... The book is filled with colorful recipes — thanks to syntax highlighting, which turns the letters red, blue and green. There are also real cooking instructions, but presented as an array of strings, with both ingredients and instructions ultimately logged as messages to the console... Some programmers might prefer their shirts from FreeWear.org, which donates part of the proceeds from every sale to its corresponding FOSS project or organization. (There are T-shirts for Linux, Gnome and the C programming language — and even one making a joke about how hard it is to exit Vim.) But maybe it all proves that there's something for everybody. That's the real heartwarming message behind these extra-geeky Christmas gifts — that in the end, tech is, after all, still a community, with its own hallowed traditions and shared celebrations. It's just that instead of singing Christmas carols, we make jokes about Vim.

Read more of this story at Slashdot.

Quilter’s AI designs dual-PCB system in record time  TechRadar

"On Saturday, videos shared widely on social media showed Waymo vehicles stopped mid-intersection with hazard lights flashing, forcing other cars to maneuver around them," reports the San Francisco Chronicle. The Independent notes that "Without working traffic lights, the driverless cars were seemingly left confused, with many halting in their tracks and causing major traffic jams. Local riders and pedestrians shared photos and videos of the vehicles stuck at intersections with long lines of drivers piling up behind them..." In some instances, several Waymos were piled up in front of a single intersection. "6 Waymos parked at a broken traffic light blocking the roads. Seems like they were not trained for a power outage," another social media user wrote. More from CNBC: San Francisco resident Matt Schoolfield said he saw at least three Waymo autonomous vehicles stopped in traffic Saturday around 9:45 p.m. local time, including one he photographed near Arguello Boulevard and Geary Street. "They were just stopping in the middle of the street," Schoolfield said. The power outages began around 1:09 p.m. Saturday and peaked roughly two hours later, affecting about 130,000 customers, according to Pacific Gas and Electric. As of Sunday morning, about 21,000 customers remained without power, mainly in the Presidio, the Richmond District, Golden Gate Park and parts of downtown San Francisco. PG&E said the outage was caused by a fire at a substation that resulted in "significant and extensive" damage, and said it could not yet provide a precise timeline for full restoration... Amid the disruption, Tesla CEO Elon Musk posted on X: "Tesla Robotaxis were unaffected by the SF power outage." Unlike Waymo, Tesla does not operate a driverless robotaxi service in San Francisco. Tesla's local ride-hailing service uses vehicles equipped with "FSD (Supervised)," a premium driver assistance system. The service requires a human driver behind the wheel at all times... The Waymo pause in San Francisco indicates cities are not yet ready for highly automated vehicles to inundate their streets, said Bryan Reimer, a research scientist at the MIT Center for Transportation and co-author of "How to Make AI Useful." "Something in the design and development of this technology was missed that clearly illustrates it was not the robust solution many would like to believe it is," he said. [He recommends "human backup systems in place around highly automated systems, including robotaxis."] State and city regulators will need to consider what the maximum penetration of highly automated vehicles should be in their region, Reimer added, and AV developers should be held responsible for "chaos gridlock," just as human drivers would be held responsible for how they drive during a blackout. Waymo did not say when its service would resume and did not specify whether collisions involving its vehicles had occurred during the blackout.

Read more of this story at Slashdot.