February 2020 - Talk - lists.gtalug.org

Finding current cursor position in the terminal
by Giles Orr 19 Feb '20

19 Feb '20

I'd like to be able to get the current x,y (or row, column) position of the cursor in a terminal. This is for a Bash or ZSH prompt, and my intention is to calculate how far across the terminal we've printed and then decide if we should wrap the prompt from one to two lines. There's a terminal escape sequence to do this: echo -e '\033[6n' or: tput u7 These output the desired information in some form of extremely difficult-to-parse code (works on Mac or any Linux, I think). The output looks like this: ^[[24;1R The numbers are line and column respectively. If you search the web, you can find various code (usually using the builtin 'read' command) to parse this. And some of the answers work fine ... in this context, ie. running it as a stand-alone command. But wrap it in a prompt and things go straight to hell. export PS1="--\$(echo -en '\e[6n')-- " You'll find that some of the output appears after the prompt, as part of the input line. Any attempt to 'read' and parse the value within the prompt hangs or returns empty, or does something else weird. My guess (uneducated and wild as it is) is that the escape sequence doesn't complete until AFTER the prompt is displayed. Because it's waiting for some magical code the prompt provides? I have no clue. One or two of the pieces of code I've found do parse the result and return properly ... but then they always return "1" for the column ... (they usually get the row right). And I'm primarily looking for the column. I've spent a lot of time searching for a solution, and trying all kinds of weird Bash coding tricks, with no particular luck. Does anyone have any idea how this might be handled? This is just one of many, many half-complete examples I've tracked down. The questioner eventually provided his own answer: https://stackoverflow.com/questions/43911175/get-current-cursor-position-wh… but what I found was that it always returns 1 for the column ... The author didn't care because they were only interested in the line number. Any help appreciated. -- Giles https://www.gilesorr.com/ gilesorr(a)gmail.com

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Feb 2017 meeting video -- Linux and UN Refugee Agency with Evan Leibovitch
by Alex Volkov 12 Feb '20

12 Feb '20

Hello Everyone, After much technical difficulties I managed to get Evan's talk from February 2017 edited and posted on our youtube channel. Here is the video of the meeting -- https://youtu.be/co7EDPkFRpI Meeting details -- https://gtalug.org/meeting/2017-02/ Thank you Evan for giving this presentation, I found it to be very insightful. Alex.

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Linux Foundation sale
by Daniel Wayne Armstrong 12 Feb '20

12 Feb '20

Might be of interest (I am certainly interested!): the Linux Foundation is having a sale (up to 85% discount) for online training and certification (LFCS and LFCE) bundles ... https://cloud.email.thelinuxfoundation.org/linuxtraining Sale ends Feb 18th. -- Daniel Wayne Armstrong https://www.circuidipity.com <http://www.circuidipity.com>

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Miracast
by Ivan Avery Frey 12 Feb '20

12 Feb '20

Last evening we ran into problems projecting the presenter's slides onto the room's monitor. The Wikipedia entry on Miracast claims Google dropped support for Miracast with Android 6 (Marshmallow) Ivan.

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Intel GPU support for HDMI 2.0 (UltraHD)
by D. Hugh Redelmeier 12 Feb '20

12 Feb '20

It seems that 7th gen and later Intel processors can support HDMI 2.0, but only with an external "LSPCON" (Level Shifter and Protocol CONverter) component on the motherboard. See <https://www.intel.com/content/dam/support/us/en/documents/graphics/HDR_Inte…> As I've mentioned before, going through DisplayPort also works and does not require a LSPCON.

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interesting way ransomware broke into Windows systems
by D. Hugh Redelmeier 10 Feb '20

10 Feb '20

<https://www.tomshardware.com/news/robbinhood-ransomware-gigabyte-driver-cyb…> A security failure by Gigabyte and another by Verisign. Maybe the Linux world is better without manufacturer support.

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[GTALUG-Announce] Meeting on Tuesday, February 11 at 07:30 PM
by hi＠gtalug.org 10 Feb '20

10 Feb '20

<https://gtalug.org/meeting/2020-02/> # Correction: the meeting is on Tuesday, February 11, 2020 and not on Friday, February 14 2020 as it was previously stated. # Concurrency with Warren McPherson High-performance applications use graphics processors to do hundreds of calculations in parallel yet people often misunderstand some of the foundational problems. We review a couple of those problems tracing the career of Turing Award winner Leslie Lamport. Then we look at the impact of these ideas on Machine Learning and Blockchain technologies. ## Location George Vari Engineering and Computing Centre 245 Church Street, Room 203 Ryerson University <https://goo.gl/maps/16oJ2> <https://www.openstreetmap.org/way/23447525> ## Schedule * 6:00 pm - Please discuss on the general mailing list (i.e. <talk(a)gtalug.org>) where you want to go for dinner. * 7:30 pm - Meeting and presentation. * 9:00 pm - After each meeting, a group of GTALUGers move to The Imperial Pub (54 Dundas St East) for refreshments and more socialising. # Code of Conduct We want a productive happy community that can welcome new ideas, improve every process every year, and foster collaboration between individuals with differing needs, interests and skills. We gain strength from diversity, and actively seek participation from those who enhance it. This code of conduct exists to ensure that diverse groups collaborate to mutual advantage and enjoyment. We will challenge prejudice that could jeopardise the participation of any person in the community. The Code of Conduct governs how we behave in public or in private whenever the Linux community will be judged by our actions. We expect it to be honoured by everyone who represents the community officially or informally, claims affiliation or participates directly. It applies to activities online or offline. We invite anybody to participate. Our community is open. Please read more about the GTALUG Code of Conduct here: <https://gtalug.org/about/code-of-conduct/>. If you have any questions, comments, or concerns about the GTALUG Code of Conduct please contact the GTALUG Board @ <board(a)gtalug.org>. --- GTALUG Announce mailing list announce(a)gtalug.org https://gtalug.org/mailman/listinfo/announce

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I believe Amazon is leaking delivery information.
by Alvin Starr 02 Feb '20

02 Feb '20

When I order something from Amazon not long after I get emails from various phisherpeople claiming to be UPS or some other delivery company. The messages are coming through an old email address that is badly spam filtered. I would like to ask if people order from Amazon check your spam folders for messages with attachments claiming to be from UPS or others. I would like to try and see if its just me or if there is a systemic problem at Amazon. -- Alvin Starr || land: (647)478-6285 Netvel Inc. || Cell: (416)806-0133 alvin(a)netvel.net ||

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[GTALUG-Announce] Meeting on Tuesday, February 11 at 07:30 PM
by hi＠gtalug.org 01 Feb '20

01 Feb '20

<https://gtalug.org/meeting/2020-02/> # Correction: the meeting is on Tuesday, February 11, 2020 and not on Friday, February 14 2020 as it was previously stated. # Concurrency with Warren McPherson High-performance applications use graphics processors to do hundreds of calculations in parallel yet people often misunderstand some of the foundational problems. We review a couple of those problems tracing the career of Turing Award winner Leslie Lamport. Then we look at the impact of these ideas on Machine Learning and Blockchain technologies. ## Location George Vari Engineering and Computing Centre 245 Church Street, Room 203 Ryerson University <https://goo.gl/maps/16oJ2> <https://www.openstreetmap.org/way/23447525> ## Schedule * 6:00 pm - Please discuss on the general mailing list (i.e. <talk(a)gtalug.org>) where you want to go for dinner. * 7:30 pm - Meeting and presentation. * 9:00 pm - After each meeting, a group of GTALUGers move to The Imperial Pub (54 Dundas St East) for refreshments and more socialising. # Code of Conduct We want a productive happy community that can welcome new ideas, improve every process every year, and foster collaboration between individuals with differing needs, interests and skills. We gain strength from diversity, and actively seek participation from those who enhance it. This code of conduct exists to ensure that diverse groups collaborate to mutual advantage and enjoyment. We will challenge prejudice that could jeopardise the participation of any person in the community. The Code of Conduct governs how we behave in public or in private whenever the Linux community will be judged by our actions. We expect it to be honoured by everyone who represents the community officially or informally, claims affiliation or participates directly. It applies to activities online or offline. We invite anybody to participate. Our community is open. Please read more about the GTALUG Code of Conduct here: <https://gtalug.org/about/code-of-conduct/>. If you have any questions, comments, or concerns about the GTALUG Code of Conduct please contact the GTALUG Board @ <board(a)gtalug.org>. --- GTALUG Announce mailing list announce(a)gtalug.org https://gtalug.org/mailman/listinfo/announce

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[GTALUG-Announce] Meeting on Friday, February 14 at 07:30 PM
by hi＠gtalug.org 01 Feb '20

01 Feb '20

<https://gtalug.org/meeting/2020-02/> # Concurrency with Warren McPherson High-performance applications use graphics processors to do hundreds of calculations in parallel yet people often misunderstand some of the foundational problems. We review a couple of those problems tracing the career of Turing Award winner Leslie Lamport. Then we look at the impact of these ideas on Machine Learning and Blockchain technologies. ## Location George Vari Engineering and Computing Centre 245 Church Street, Room 203 Ryerson University <https://goo.gl/maps/16oJ2> <https://www.openstreetmap.org/way/23447525> ## Schedule * 6:00 pm - Please discuss on the general mailing list (i.e. <talk(a)gtalug.org>) where you want to go for dinner. * 7:30 pm - Meeting and presentation. * 9:00 pm - After each meeting, a group of GTALUGers move to The Imperial Pub (54 Dundas St East) for refreshments and more socialising. # Code of Conduct We want a productive happy community that can welcome new ideas, improve every process every year, and foster collaboration between individuals with differing needs, interests and skills. We gain strength from diversity, and actively seek participation from those who enhance it. This code of conduct exists to ensure that diverse groups collaborate to mutual advantage and enjoyment. We will challenge prejudice that could jeopardise the participation of any person in the community. The Code of Conduct governs how we behave in public or in private whenever the Linux community will be judged by our actions. We expect it to be honoured by everyone who represents the community officially or informally, claims affiliation or participates directly. It applies to activities online or offline. We invite anybody to participate. Our community is open. Please read more about the GTALUG Code of Conduct here: <https://gtalug.org/about/code-of-conduct/>. If you have any questions, comments, or concerns about the GTALUG Code of Conduct please contact the GTALUG Board @ <board(a)gtalug.org>. --- GTALUG Announce mailing list announce(a)gtalug.org https://gtalug.org/mailman/listinfo/announce

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