Category: cool tested GNU Linux Apps

git was initially written by Linus Torvalds on the idea: how to create source code management system that does not suck. source code management is very useful when the developer team is x > 1 developer. it allows fast syncing […]

some jpgs are badly compressed, taking 5-10MBytes each! a little nifty cool tool let’s you batch recompress WARNING! Always test things out before applying it to your original data! # become root su – root # install jpegoptim apt install […]

for good overview it makes sense to label the harddisk partitions according to functionality (what is their purpose?) GNU Linux bash – how to label partitions tune2fs (xfs & ext4) … because maybe one wants to read their smart status. […]

monitoring the integrity of a RAID is critical for fast replacement of failed harddisks (ideally one has at least one spare drive already in the machine) if not – it would be great if hard- and software-raid would send a […]

tar gz (single core) -> tar pigz (multi core) tar might be old, but still a great program for archiving files manpage: tar.man.txt to get multi core usage for compression (faster) the user tells tar to use a different compression […]

Cinnamon desktop developed by Developer(s) Linux Mint team! – is a beautiful desktop (default on Linux Mint) alternative to Gnome2 MATE. BUT: still prefer Gnome2 MATE (at least on GNU Debian Linux) because it is: minimalistic / very resource efficient […]

while not officially supported no drivers here: https://www.wacom.com/en-us/support/bamboo-support works out of the box on CentOS7/Rhel7, Kernel 4.15.9 THIS WORKS ABSOLUTELY INCREDIBLE 🙂 THANKS ALL INVOLVED! # what os do i have? hostnamectl Operating System: CentOS Linux 7 (Core) CPE OS […]

Warum VoIP? Viele Anbieter von LTE z.B. bieten gar keine Festnetz-Telefonie an, sondern nur Internet. (das zum Teil (nicht günstiger) aber schneller (und schnurloser via Handy-Netz) als die Telekom (4G/LTE/UMTS)). D.h. man braucht dann noch einen weiteren Anbieter der die […]

update: 2020-05 for whatever reason the following SSHDroid app does not work anymore. please checkout the even easier to use (default port: 2222) and setup: SimpleSSHD (Easy to use SSH server) – https://f-droid.org/app/org.galexander.sshd # start the ssh server app # […]

aim: in software development, step debugging is a very nice way to look at your code and see if it does what it should. i wondered, if such a thing exists for shell / bash scripts. develop shell bash scripts […]

“Cinnamon is a Linux desktop which provides advanced innovative features and a traditional user experience. The desktop layout is similar to Gnome 2 with underlying technology forked from Gnome Shell. Cinnamon makes users feel at home with an easy to […]

the affordable 100% Open Source phone: update: 2021-01 “the best (most privacy & security & usability) Smart Phone solution” is yet to be found (PinePhone (yet untested) comes close) and it would be like: runs standard unmodified GNU Linux kernel […]

list of RSS feeds that might be interesting 😀 RSS-Feeds are files.xml, which are auto-generated by CMS like WordPress. It can be subscribed to with an RSS-Client Software. Thunderbird (the Mail program) for example (tested on version 60.6.4 and above) […]

CentOS8: ccze author not willing to maintain ccze. no ccze and not even lnav available. how to monitor all logs… https://dwaves.de/2017/06/15/linux-monitor-all-logs-in-real-time-d-follow-all-show-changes-to-log-files-under-varlog/ as i was wondering what combination of less -R with or without ccze would allow me to view log […]

# install debian/ubuntu apt install strace; # install redhat/centos yum install strace; # checkout what df -h is doing in detail strace -o output.txt df -h

it is not possible to change uuid of a swap partition with tune2fs, because it only supports ext3/ext4. you will have to recreate it and pass the uuid during creation, which is not a problem because usually swap SHOULD not […]

Linux is pretty hardware independent, so most of the time you can just 1:1 clone/move harddisk to new machine and in 99% of cases it will just boot. make sure – target (new) machine’s harddisk is same or bigger size […]

preparations on terminal: detect your hardware: you can get old but well supported notebooks/laptops here like the dell latitude e4310 with this intel-spy-on-me wifi/bluetooth module on board: lshw |grep lue description: Bluetooth wireless interface product: DW375 Bluetooth Module capabilities: bluetooth […]

E-Book erstellen und veröffentlichen / ein Buch schreiben mit Linux https://scribus.net/ Update: Scribus 1.5.x es wird sich viel ändern in der neuen Version. English: (origial): Scribus_1.5.x_README_& RELEASE NOTES 1.5.x.en.txt Deutsch: (AutoTranslated) Scribus_1.5.x_README_& RELEASE NOTES 1.5.x.de.txt “Bitte beachten Sie, dass sich […]

the repository is here: https://notabug.org/libreboot/libreboot NOTE: LibreBoot (status of 2018) can NOT boot Windows X-D (who cares). So guess one wants to use LibreBoot with GNU Linux only. even when CoreBoot is a 10 year old project… replacing your BIOS […]

warning: this only works if you have a gui/gnome installed. thanks goes to this superb tutorial with screenshots: http://xmodulo.com/debug-program-nemiver-debugger.html For Debian based distributions, it should be pretty straightforward: apt-get install nemiver; # Debian and Ubuntu pacman -S nemiver; # For […]

update 2022: build a Kindle like eBook reader 🙂 with this Display 🙂 (raspberry compatible) https://e-radionica.com/en/inkplate-6.html (that is the 6″ inch display) there is also a 10″ inch display https://e-radionica.com/en/blog/inkplate-10-crowdfunding-campaign-is-now-live/ https://www.crowdsupply.com/e-radionica/inkplate-6plus by TAVU Limited Liability Company for the Design and […]

sad update: Peter Eckersley of Let’s Encrypt is Dead   may his soul find rest in the open source nirvana from earthly troubles… may the pain of his family and friends be overcome may let’s encrypt live on! Why: Do MAJOR […]

the hardware: a webcam that is supported out of the box with most linux distros is the Logitech HD Pro Webcam C920 it has also HD resolution and stereo microphone. worth the investment if you do a lot of online […]

Debian Ubuntu Mint: for the deb based distributions hostnamectrl; # tested on Armbian (Debian for ARM Bullseye) su – root; # become root apt update; # always good apt install console-data # select a new keymap # for languages others […]

Update: as of 2019-01 and CentOS 7.6 the below setup may fail by now, for those reasons… BUT you CAN compile the latest kernel and all modules yourself (DON’T BE SHOCKED! YOU CAN DO IT! IT’S NOT ROCKET SIENCE!… just […]

hostnamectl; # tested with Static hostname: debian9 Operating System: Debian GNU/Linux 9 (stretch) Kernel: Linux 4.12.0cuztom Architecture: x86-64 su – root apt update apt install genisoimage genisoimage –help genisoimage -r -J -l -ldots -o etc.iso /etc; # turn folder /etc […]

update: extundelete works well on ext3 but not on ext4. update: WHILE STILL POWERED ON IMMEDIATELY backup the ext4 journal to file on usb stick: debugfs -R “dump <8> /mount/usb-stick/sda.journal” /dev/sda (assuming sda is the drive where the deletion happened) […]

i tried to get GOK working… no chance outdated. then i thought i look into caribou… i don’t get it how that works… so i went on to: florence and it just did what i expected it to do install […]

interesting but untested app under CentOS MATE Gnome2 it was successfully tested with a Brother 9460 CDN under Debian 8. Brother is shipping it’s own brsane config tool. this should work for Ubuntu as well. https://launchpad.net/simple-scan epson via usb: if […]