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Hosted by Ahuka on 2018-10-19 is flagged as Clean and released under a CC-BY-SA license.
Tags: Health, Medicine, Exercise, Diet.
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Series: Health and Healthcare | Comments (0)
The best things you can do to maximize your health are to watch what you eat and make sure you get exercise. These are some of the primary tools in my kit for staying healthy and living a long life.
In this episode of HPR I present the workflow I use to contribute to opensource projects using git. I have no idea if this workflow is something that is commonly used, but it is working for me, so I thought I’d share it with the HPR community.
The first thing I do is fork the project I want to contribute to. This is done on github most of the time, although this workflow can work on gitlab, bitbucket, or even some self hosted git platform.
Once the project is forked, I clone it on my machine :
$ git clone git://server/path/to/myproject.gitGit automatically names my remote project origin.
Then I add a reference to the original project :
$ git remote add upstream https://server/path/to/originalproject.gitNow my local repository references my fork under the name origin and the original project under the name upstream.
In this workflow, I never work on the master branch. So, when I need to fix a bug for example, I create a new branch :
$ git checkout -b bugfixI can then make changes, test my code, make sure everything is ok, stage and commit my changes :
$ git add .
$ git commit -m "commit message"Now I need to push this local branch to my repository on github :
$ git push -u origin bugfixSince I forked the original project, github knows that origin and upstream are linked. If there are no conflicts, github will show me a big green button to create a pull request. Once the pull request is created, I just have to wait for the maintainer to merge it in upstream’s master branch. Then, I need to sync both my local copy and my fork on github with the original project. In order to do that, on my local copy, I checkout my master branch, fetch upstream’s changes, and merge them :
$ git checkout master
$ git fetch upstream
$ git merge upstream/masterNow my local master branch is ahead of origin’s master branch, so I push those changes to github :
$ git pushI don’t need the bugfix branches (the local one and the github one), so I can delete those :
$ git branch -d bugfix
$ git push origin -d bugfixAnd now, my local repository is even with both origin and upstream, and I can start again.
To summarize, here’s the complete workflow :
$ git checkout -b myawesomefeature
$ git add .
$ git commit -m "Awesome commit message"
$ git push -u origin myawesomefeatureCreate a pull request, wait for the maintainer to merge it.
$ git checkout master
$ git fetch upstream
$ git merge upstream/master
$ git push
$ git branch -d myawesomefeature
$ git push origin -d myawesomefeatureWell Ken made another call for shows and as my recent interview series has come to an end by the time you listen to this here is a short review of a USB3 2.5inch HDD/SSD caddy I got from E-bay a few weeks ago.
As many of you who have listened to my previous ramblings know I frequent a local Computer auction and recently they have had some cheap 128Gig SSD’s for sale and I managed to pick several up at a good price. After using some to upgrade some desktop PC’s to SSD I had a couple of these spare and as I have USB3 on my main laptop thought it would be good to be able to use one or two of these as portable storage or even for boot drives to test out odd Linux distro or 2.
So I purchased a caddy off that font of all things techie E-bay for £5.50, link here:
https://www.ebay.co.uk/itm/USB-3-0-to-SATA-Hard-Drive-Enclosure-Caddy-Case-For-2-5-Inch-HDD-SSD-External/282930148654?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2648
So after it arrived I plugged in one of the drives and tested it out. The first thing to notice is that SSD’s being 7mm in depth flop about a bit in the case but this is easily resolved by a bit of card under the drive to help it fit snug in the case and it does mean that the case will support the larger 9mm 2.5inch spinners if needed. I’ve not tested a larger older spinner but I suspect they will not fit as 9mm ones are very snug in the case.
Anyway the drive was detected by the PC/Laptop and works flawlessly and as it is so quick to swap drives in the caddy means I can carry large data files and my music and video library when on the move with the advantage that it is less likely to be damaged if accidentally dropped or knocked off a surface, which is quite likely with a portable spinner HDD.
I am very happy with this purchase and it has already become a regular part of my travelling tool kit/laptop bag.
Hosted by Archer72 on 2018-10-16 is flagged as Explicit and released under a CC-BY-SA license.
Tags: hardware, circuit board, repair.
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Acquired new user tower, replaced old tower with blown caps
Dell Pentium 4 CPU 3.20GHz, 2Gb RAM
sudo shred -n 5 -vz /dev/sdX
-n, --iterations=N
-v, --verbose
show progress
-z, --zero
add a final overwrite with zeros to hide shreddingUsed same Slackware USB from old tower
Used soldering iron from Amazon - Weller WLC100 40-Watt Soldering Station
https://www.amazon.com/gp/product/B000AS28UC/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
Hosted by Ken Fallon on 2018-10-12 is flagged as Explicit and released under a CC-BY-SA license.
Tags: Arduino, Boot Loader, ISP, ICSP.
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In this show you will learn how to install a bootloader on an Arduino using another Arduino via In-Circuit Serial Programming (ICSP)
All credit goes to M-SHORT over at SparkFun for the excellent tutorial.
Hosted by Dave Morriss on 2018-10-11 is flagged as Explicit and released under a CC-BY-SA license.
Tags: Bash,test,conditional expression,string comparison,pattern.
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Series: Bash Scripting | Comments (0)
This is the eleventh episode in the Bash Tips sub-series. It is the third of a group of shows about making decisions in Bash.
In the last two episodes we saw the types of test Bash provides, and we looked briefly at some of the commands that use these tests. Now we want to start examining the expressions that can be used in these tests, and how to combine them. We will also start looking at string comparisons in extended tests.
I have provided detailed notes as usual for this episode, and these can be viewed here.
“POSIX Shell Command Language” - documentation of all of the POSIX features mentioned in this series.
Al asks Dave a number of questions about podcast audio recording and post-production.
National Podcast Post Month (or NaPodPoMo) is a challenge in a similar vein to National Novel Writing Month (or NaNoWriMo) in which participants are challenged to produce and publish a piece of audio as a podcast, every day for the month of November.
Audio quality is as important as the content that's being presented. Bad audio is going to be what causes new podcasters the most damage in subscriber numbers. An example of good audio is the true crime podcast, One Eye Open, which Dave started listening to a couple of weeks ago. He also picked up a couple of other true crime podcasts as a result of listening to One Eye Open where the audio quality is so bad, that they can't be heard!
Loudness is a measurement of how loud something is perceived to be. Levelling is a process of ensuring that individual tracks in a podcasts are an an equivalent level, but also the podcast overall is at an equivalent level to other podcasts that have been levelled the same way.
Al and Dave have a very similar microphone setup.
The non-technical definition is that it brings up the quiet bits and brings down the louder bits so that your voice has less of a variance if you shout or whisper.
You can measure your own level in Audacity - make sure you stay in the green! If you stray into yellow or even red, either lower your level or move slightly away from the mic.
Concentrate on your own, get others to manage theirs. If you're recording multiple tracks, it can be managed in post-production, but once it's been merged into a single track it's virtually impossible.
Record in a lossless format, and do your edits and post-production in a lossless format. Only transcode to a lossy format once you're ready to publish your final file.
If you're recording yourself, and you don't want to hear yourself through headphones, take the headphones off.
If you're recording with someone else who is not in the same room, you are better off hearing yourself through your headphones at the same level as the person you're talking to.
This will be Al's first attempt at NaPodPoMo, but not for Dave. Dave wants to make sure that he plans for this year, so he doesn't run out of material on day 7!!
Dave will interview another NaPodPoMo participant at least once a week during November. Looks like Al will be one of them!
Podcasting isn't rocket science. You don't need lots of expensive equipment to produce a podcast. You just need something to record into (e.g. a mobile phone or portable recorder) and somewhere to host it. You can host on your own website or on one of a number of free services, like Anchor, AudioBoom, or indeed Hacker Public Radio!
Now, this is not a doom and gloom lecture.
Actually it is a talk about what is going to happen in the next 30 years.
It is a talk about what is called “postcapitalism”.
It is a talk about how almost all jobs are going to disappear due to automation. But also how we are going to think about this this and come up with solutions.
It talks about the three big challenges we need to face.
And yes, this involves you as well!
UK HF band plan information
http://rsgb.org/main/operating/band-plans/hf/
Morse code (CW), Carrier Wave
https://en.wikipedia.org/wiki/Morse_code
Article about Sideband, including Lower Side Band (LSB) and Upper Side Band (USB)
https://en.wikipedia.org/wiki/Sideband
Amplitude Modulation (AM)
https://en.wikipedia.org/wiki/Amplitude_modulation
Frequency Modulation (FM)
https://en.wikipedia.org/wiki/Frequency_modulation
Frequency Shift Keying (FSK)
Note the CW ident di da dit or dot dash dot is not as I thought the letter “K” in Morse code, silly me, it’s actually the letter “R”. Told you I wasn’t great at Morse.
https://en.wikipedia.org/wiki/Frequency-shift_keying
The “T-F Set” button is used to set the Transmit frequency when working in split mode. In split mode, you can set the radio to transmits on one frequency and receives on a different frequency.
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