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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

Systemd 259 release candidate flexes musl support – with long list of caveats  theregister.com

Canadian librarian Ian Linkletter has ended a five-year legal battle with ed-tech firm Proctorio after being sued for sharing public YouTube help videos that exposed how the company's remote-proctoring AI works. Ars Technica reports: ... Together, the videos, the help center screenshot, and another screenshot showing course material describing how Proctorio works were enough for Proctorio to take Linkletter to court. The ed tech company promptly filed a lawsuit and obtained a temporary injunction by spuriously claiming that Linkletter shared private YouTube videos containing confidential information. Because the YouTube videos -- which were public but "unlisted" when Linkletter shared them -- had been removed, Linkletter did not have to delete the seven tweets that initially caught Proctorio's attention, but the injunction required that he remove two tweets, including the screenshots. In the five years since, the legal fight dragged on, with no end in sight until last week, as Canadian courts tangled with copyright allegations that tested a recently passed law intended to shield Canadian rights to free expression, the Protection of Public Participation Act. To fund his defense, Linkletter said in a blog announcing the settlement that he invested his life savings "ten times over." Additionally, about 900 GoFundMe supporters and thousands of members of the Association of Administrative and Professional Staff at UBC contributed tens of thousands more. For the last year of the battle, a law firm, Norton Rose Fulbright, agreed to represent him on a pro bono basis, which Linkletter said âoewas a huge relief to me, as it meant I could defend myself all the way if Proctorio chose to proceed with the litigation." The terms of the settlement remain confidential, but both Linkletter and Proctorio confirmed that no money was exchanged. For Proctorio, the settlement made permanent the injunction that restricted Linkletter from posting the company's help center or instructional materials. But it doesn't stop Linkletter from remaining the company's biggest critic, as "there are no other restrictions on my freedom of expression," Linkletter's blog noted. "I've won my life back!" Linkletter wrote, while reassuring his supporters that he's "fine" with how things ended. "It doesn't take much imagination to understand why Proctorio is a nightmare for students," Linkletter wrote. "I can say everything that matters about Proctorio using public information."

Read more of this story at Slashdot.

ROG Xbox Ally Bazzite OS vs Steam Deck : Which Linux Handheld Wins the Battle?  Geeky Gadgets

Researchers in Germany achieved a major milestone for the future quantum internet by successfully teleporting quantum information between photons generated by two different, physically separated quantum dots -- something never accomplished before due to the difficulty of producing indistinguishable photons from remote sources. Phys.org reports: At the University of Stuttgart, the team succeeded in teleporting the polarization state of a photon originating from one quantum dot to another photon from a second quantum dot. One quantum dot generates a single photon, the other an entangled photon pair. Entangled means that the two particles constitute a single quantum entity, even when they are physically separated. One of the two particles travels to the second quantum dot and interferes with its light particle. The two overlap. Because of this superposition, the information of the single photon is transferred to the distant partner of the pair. Instrumental for the success of the experiment were quantum frequency converters, which compensate for residual frequency differences between the photons. These converters were developed by a team led by Prof. Christoph Becher, an expert in quantum optics at Saarland University. [...] In the Stuttgart experiment, the quantum dots were separated only by an optical fiber of about 10 m length. "But we are working on achieving considerably greater distances," says Strobel. In earlier work, the team had shown that the entanglement of the quantum dot photons remains intact even after a 36-kilometer transmission through the city center of Stuttgart. Another aim is to increase the current success rate of teleportation, which currently stands at just over 70%. Fluctuations in the quantum dot still lead to slight differences in the photons. The findings have been published in the journal Nature Communications.

Read more of this story at Slashdot.

The Navy Federal Flagship Rewards Card is their “premium” travel rewards card, and it has always had some nice features for those that wanted a single everyday card because it offered a boosted 3X back in travel but also a flat 2X back on everything else. In addition, the points were directly redeemable for cash (not only offsetting past travel purchases).

However, the card also had a $49 annual fee. The sign-up bonus was usually pretty good and included a free year of Amazon Prime membership ($139 value), but it only promised it for a single year. The thing was, there were scattered reports that if you kept the Flagship card linked and charged your next year of Amazon Prime on it, NavyFed would still reimburse you for that second year. But it wasn’t official, and testing it out requires paying for another annual fee, which is a bit risky.

Well, this “secret” perk is finally official! I found this out via an Instagram ad.

I checked and indeed, the application page now says that all cardholders get a “free Amazon Prime® membership (a $139 value, annually)”.

Offer applies only to Amazon® Prime Annual membership that is paid with your Visa Signature® Flagship Rewards Credit Card and posted to your account. Offer is not valid for monthly payment Prime membership options such as Prime Monthly, Prime for Young Adults, and Prime Access. Limit of one Amazon statement credit per Visa Signature® Flagship Rewards Credit Card account, per year. Please allow 6-8 weeks after the Prime Annual membership is paid for the statement credit to post to your account.

The highlights including current sign-up bonus:

• 35,000 bonus points when you spend $3,500 within the first 90 days of opening a new card. 35,000 points is worth $350.
• Free year of Amazon Prime membership. Use the card to purchase an Amazon Prime annual membership, and they’ll reimburse you ($139 value). This now works once a year.
• 3X points per net dollar spent on travel.
• 2X points per net dollar spent on everything else.
• Global Entry or TSA PreCheck fee credit (up to $120), once every 4 years.
• No foreign transaction fees.
• $49 annual fee.

The overall catch here is that in order to apply, you must first become a NavyFed credit union member. Membership eligibility for NavyFed now goes beyond active duty members of the armed forces and DoD employees to include veterans and their immediate family members — including spouses, siblings, parents, children, grandparents and grandchildren.

A smaller catch is that each point is worth $0.01, with a minimum redemption 5,000 points = $50 statement credit. There is a max of $1,500 cash back redeemed each year this way, and you can also redeem 4,900 points to offset the $49 annual fee. Sometimes it gets annoying waiting to reach that $50 threshold. But at 2% cash back on base purchases and 3% back on travel, it’s not a horrible idea to put some purchases on this card. From the fine print:

Visa Signature Flagship cardholders can redeem points for cash (1 point is equal to $0.01). The minimum redemption level is 5,000 points for $50 cash back. The maximum level of redemption is $1,500 cash back, which is equivalent to 150,000 points. Cash back rewards will be credited to your Navy Federal savings account.

I don’t know how NavyFed mathed this one out, but if they keep this structure then this card moves solidly into the “keeper” category for those that already pay for Amazon Prime membership, as the card more than pays for itself each year at $139 vs. $49 annual fee. I also appreciate the straightforward rewards system and $120 towards Global Entry/TSA PreCheck every 4 years.

Side note: NavyFed shares their rules about credit card applications publicly as follows:

Is there a limit on the number of Navy Federal credit card accounts I can open?

Yes. Currently, Navy Federal allows each member to be a primary cardholder on up to 3 Navy Federal credit cards. In addition, we’ll approve only 1 new credit card per member within a 90-day period. This means we’ll decline your application for a new credit card if you opened a credit card within the last 90 days. Note: Home Equity Line Platinum credit cards and GO BIZ® Rewards credit cards aren’t included in this 3-card limit.

FOSS Weekly #25.47: AI Mode in Firefox, Nitrux 5, GNOME Panel, Rust Alternative Commands and More Linux Stuff  It's FOSS

An anonymous reader quotes a report from the New York Times: When Mark Zuckerberg, Meta's chief executive, unveiled the company's Superintelligence Lab in June, he named 11 artificial intelligence researchers who were joining his ambitious effort to build a machine more powerful than the human brain. All 11 were immigrants educated in other countries. Seven were born in China, according to a memo viewed by The New York Times. Although many American executives, government officials and pundits have spent months painting China as the enemy of America's rapid push into A.I., much of the groundbreaking research emerging from the United States is driven by Chinese talent. Two new studies show that researchers born and educated in China have for years played major roles inside leading U.S. artificial intelligence labs. They also continue to drive important A.I. research in industry and academia, despite the Trump administration's crackdown on immigration and growing anti-China sentiment in Silicon Valley. The research, from two organizations, provides a detailed look at how much the American tech industry continues to rely on engineers from China, particularly in A.I. The findings also offer a more nuanced understanding of how researchers in the two countries continue to collaborate, despite increasingly heated language from Washington and Beijing.

Read more of this story at Slashdot.

- Cyprus Shipping News  Cyprus Shipping News