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Howtos

How to rename files in bulk

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Howtos

Consider this common scenario. A directory contains multiple files that are named using a common convention: for example, image-001.png, image-002.png, image-003.png, etc. You want to rename the files to, say, upload-001.png, upload-002.png, upload-003.png, etc.

The coders among us can write a bash script to automate the process. For expedience, this post shows how to use the built-in rename command to achieve the same goal.

Fixing OpenSuse’s Dog Awful default fonts…

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Howtos

Lets not beat around the bush here, the default font rendering in OpenSuse and the default font do not an OS fit for reading make.. this can be fixed however..

Love or hate Ubuntu, out of the box it has one of the best font rendering setups of any distro and considering how much time we spend on our PC’s setting your fonts up correctly is one less headach, literally.

I’m not sure how much of these instructions I got right, however after a reboot the screen text does at least look better..

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Stopping Screen Flickering on Ivy Bridge Laptops using Linux

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Howtos

This is a solution to a problem which has been dogging me on every version of Linux I install on the Acer Aspire S3. I'm hoping it will help someone.

Read my solution

Forgot your Ubuntu Password? All is not lost.

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Howtos

It’s always a pain when you forget your password, and i’ve often done it on an Ubuntu install. All however is not lost as a stock Ubuntu install its quite easy to reset your password

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Creating an AD Server for Free using Ubuntu and Samba

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Howtos

While being a huge fan of the GNU/Linux OS I do also live in the real world which means using Active Directory Domain Controllers and Windows networks. this week however I’ve had to build for a project a stand alone AD network. This got me thinking to a project I built for a school 6 uears ago which I did the same thing with Samba on Fedora.

Remote Application launching using X11 and SSH.. Oldie but a goodie..

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Howtos

Using WordPress as my central blog platform I’m very happy with it, not much to complain about, some good features, it’s very social and some nice themes. However it’s got me thinking not so much my content i’m now having a “problem” to manage it’s dealing with the replies

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Using the right tools to get your media..

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Howtos

When it comes to getting what you want off the interent, its pretty fair to say, that there is an application and a set of instructions to do this. In this day and age its fair to say that getting media off the web should be the way that media companies distribute. Instead of trying to reinvent the wheel. Unfortunately they don't they bog you down with Websites, DRM, Magma and lots more.. Well This is how to get your media another way..

Standard Disclaimer: Your use of this software and configuration is at your own risk. Check the legality of downloading TV shows in your area. This post is purely for the sake of information.

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Big Bear's Helpful Hints-Google Docs Spreadsheets

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Howtos

I like to jot down things that I learn how to do on the spur of the moment so that I can find it later.

I admit, in the 80's there was quite of bit of "herbal remedy" usage and my short term memory isn't what it could be. That's my story and I'm sticking to it.

I've decided that I might as well potentially help some other folks who might want to know about some of the things I discover, so I thought why not here?

For my very first post, I wanted to figure out how to sum cells across multiple pages in Google Docs spreadsheets.

How to get APT to work through a proxy..

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Howtos

APT is the core of package management on Debian based systems, its a powerful suite of tools for getting and managing packages onto the system.

As powerful as the Apt suite is, it has problems as I found out this week working through a proxy server. Something i've recently implemented.

Read How...

How do i get the ethernet cards to come up automatically on CentOS/RedHat/Fedora ?

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Howtos

Having recently installed a CentOS 6 minimal server i was concerned that the network cards even after running the system network config tool didn't come up after a reboot. Took a few minutes, but i figured out why..

Find Out how to auto mount the Network Cards...

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More in Tux Machines

Galaxy Watch will run Tizen 4.0

In May, Samsung trademarked the “Galaxy Watch” and “Galaxy Fit” monikers at the USPTO, suggesting its plan to bring its wearables under the Galaxy branding. Now two months later, SamMobile confirms that Samsung’s next smartwatch, the successor to the Gear S3, will indeed be called the Galaxy Watch, and not Gear S4. Furthermore, they add that the upcoming Galaxy Watch will run Tizen 4.0 out of the box. Read more

Krita 4.1.1 Released

When it is updated, you can also use the Krita Lime PPA to install Krita 4.1.1 on Ubuntu and derivatives. We are working on an updated snap. Read more

Qt Creator 4.7.0

  • Qt Creator 4.7.0 released
    We are happy to announce the release of Qt Creator 4.7.0!
  • Qt Creator 4.7 Released With Clang Code Model Turned On By Default
    The Qt Company has officially released Qt Creator 4.7 as the newest feature release to this open-source, cross-platform Qt/C++ focused integrated development environment. Today's Qt Creator 4.7 IDE release is quite significant in that it finally turns on the Clang code model by default. The Clang code model provides significantly better C++ support over what was offered by their in-house code model and will stay better up-to-date with newer C/C++ standards, etc. The Clang code model in Qt Creator 4.7 is based on LLVM/Clang 6.0.

Linux Security

  • Security updates for Wednesday
  • PTI Support To Address Meltdown Nearing The Finish Line For x86 32-bit Linux
    While Page Table Isolation (PTI/KPTI) has been available since the Meltdown CPU vulnerability was disclosed at the start of the year, that's been for x86_64 Linux while the x86 32-bit support has remained a work-in-progress and only relatively recently has come together. Joerg Roedel sent out the eighth version of the x86-32 PTI patches today, which address feedback following a good round of review. This latest page table isolation work for x86 32-bit address more developer feedback and tidies up some of the code.
  • Linux To Better Protect Entropy Sent In From User-Space
    Fedora has begun utilizing a user-space jitter entropy daemon for feeding entropy to the kernel at boot time in case not enough is available for the kernel's random needs. But with that approach not being from a true hardware random number generator, a patch worked out by veteran Linux kernel developer Ted Ts'o will mix in RdRand entropy. Fedora has resorted to a user-space jitter entropy daemon to workaround slow boot times on a sub-set of systems/VMs when using recent kernels. A change was made to the kernel earlier this year for addressing CVE-2018-1108, which is about a weakness in the kernel's random seed data whereby early processes in the boot sequence could not have random enough data. But the fix dramatically slows down systems booting by waiting until sufficient entropy is available. This is problematic particularly for VMs where virtio-rng is not present. For some users, they can't get the system(s) booted on affected kernels unless tapping on keyboard keys enough times for generating sufficient entropy.
  • Linux 4.17.8
    I'm announcing the release of the 4.17.8 kernel. This is to fix the i386 issue that was in the 4.17.7 release.  All should be fine now.
  • SPECTRE Variant 1 scanning tool
  • When your software is used way after you EOL it.
    One of my first jobs was working on a satellite project called ALEXIS at Los Alamos National Laboratory and had been part of a Congressional plan to explore making space missions faster and cheaper. This meant the project was a mix-mash of whatever computer systems were available at the time. Satellite tracking was planned on I think a Macintosh SE, the main uploads and capture were a combination of off the shelf hardware and a Sparc 10. Other analysis was done on spare Digital and SGI Irix systems. It was here I really learned a lot about system administration as each of those systems had their own 'quirks' and ways of doing things. I worked on this for about a year as a Graduate Research Assistant, and learned a lot about how many projects in science and industrial controls get 'frozen' in place way longer than anyone writing the software expects. This is because at a certain point the device becomes cheaper to keep running than replace or even updating. So when I was watching this USGS video this morning,