Sometimes it seems like the first (and sometimes only) advice you get offered for almost any problem with a Raspberry Pi is "check your power supply". You think something like:
"hey, I'm using an official power supply sold as being matched with my Pi so how can there be any problem?"
You look up the specs then stick a controlled load across your supply and confirm that it can deliver the required number of Watts.
Yet your problems persist…
| { | |
| "name": "Acme", | |
| "author": "Adriano Romanazzo (multiversecoder)", | |
| "globals": | |
| { | |
| "foreground": "#000", | |
| "background": "#FFFEEC", | |
| "border": "13px solid #000", | |
| "accent": "#000", | |
| "caret": "#000", |
My Raspberry Pi 4 kept losing its wlan0 interface. I could usually reconnect via Ethernet but, from time to time, I noticed that the eth0 interface would also go walkabout.
I tried a lot of things but the one described here seems to have cured the problem. I have no idea why it works. It just does.
The script shown in the next step should be created on your Raspberry Pi. Please do not make the mistake of selecting the text, copying it into a text editor on your Windows machine, saving the file, and then moving the file to your Raspberry Pi. Unless you take precautions, Windows will add its 0x0d 0x0a (CR+LF) line endings and those will stop the script from working properly on your Raspberry Pi.
| #!/bin/bash | |
| # Script that updates the iTerm Badge with the hostname of the server that you are | |
| # connecting to with ssh. | |
| # | |
| # Instructions: | |
| # - Put this script in ~/bin/ssh (this will override the default ssh binary) | |
| # - Run 'chmod +x ~/bin/ssh' to give execution permission to the script | |
| # - Open iTerm\Preferences\Profiles, select your profile and put '\(user.current_ssh_host)' in the Badge text box | |
| # - Enjoy! |
| #!/usr/bin/perl | |
| # This script is made to show graphs with git commit time made on workweek vs weekend | |
| # | |
| # The desription of this script and results of its usage is avaliable at: | |
| # https://ivan.bessarabov.com/blog/famous-programmers-work-time-part-2-workweek-vs-weekend | |
| # | |
| # usage: | |
| # | |
| # git log --author="Sebastian Riedel" --format="%H %ai" | perl script.pl |
| git log --author="Linus Torvalds" --date=iso | perl -nalE 'if (/^Date:\s+[\d-]{10}\s(\d{2})/) { say $1+0 }' | sort | uniq -c|perl -MList::Util=max -nalE '$h{$F[1]} = $F[0]; }{ $m = max values %h; foreach (0..23) { $h{$_} = 0 if not exists $h{$_} } foreach (sort {$a <=> $b } keys %h) { say sprintf "%02d - %4d %s", $_, $h{$_}, "*"x ($h{$_} / $m * 50); }' | |
There are so many great GIFs out there and I want to have copies of them. Twitter makes that harder than it should be by converting them to MP4 and not providing access to the source material. To make it easier, I made a bash pipeline that takes a tweet URL and a filename, extracts the MP4 from that tweet and uses ffmpeg to convert back to GIF.
brew install ffmpegapt install ffmpeg| ;;; initfile --- Summary: | |
| ;;; Commentary: | |
| ;; Emacs 25.1 and newer tested | |
| ;;; Code: | |
| ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| ;; Configuration/Customization: | |
| ;; Defines global variables that are later used to customize and set | |
| ;; up packages. | |
| ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
Here are the steps to installing and setting up GDB on Mac OS Sierra/High Sierra.
Run brew install gdb.
On starting gdb, you will get the following error:
Unable to find Mach task port for process-id 2133: (os/kern) failure (0x5).
(please check gdb is codesigned - see taskgated(8))To fix this error, follow the following steps:
my sublime setup for haskell includes:
*theme file and omit the rest of the plugin. And even that is optional.)f9, or select nothing (whole file gets formatted)