Jakub Urbanec cubapp

Linux, scripting, IoT, ahhhh whatever ... https://gist.github.com/cubapp

cubapp / adjust-2-sea-pressure.py

Last active February 28, 2024 20:22

Python: How to get the adjusted-to-sea level barometric pressure from actual pressure, temperature and height above the sea level

	# Actual atmospheric pressure in hPa
	aap = 990
	# Actual temperature in Celsius
	atc = 10
	# Height above sea level
	hasl = 500

	# Adjusted-to-the-sea barometric pressure
	a2ts = aap + ((aap * 9.80665 * hasl)/(287 * (273 + atc + (hasl/400))))

cubapp / keybase.md

Created May 17, 2017 07:23

I hereby claim:

To claim this, I am signing this object:

cubapp / fizzbuzz.c

Created August 28, 2017 08:51

FizzBuZZ the C way - inspired by http://codepad.org/fizzbuzz

	#include <stdio.h>
	int main(void)
	{
	int i;
	for(i=1; i<=100; i++)
	(i%15)?(i%5)?(i%3)?printf("%d\n",i):printf("Fizz\n"):printf("Buzz\n"):printf("FizzBuzz\n");
	return 0;
	}

cubapp / fizzbuzz-ugly.c

Created August 28, 2017 09:00

The FizzBuzz.c the ugly way ...

	#include <stdio.h>
	void main(void){for(int i=0; i<=99; (++i%15)?(i%5)?(i%3)?printf("%d\n",i):printf("Fizz\n"):printf("Buzz\n"):printf("FizzBuzz\n"));}

cubapp / last5.c

Created January 16, 2018 07:50

Last 5 - get the last 5 characters from each line of a text file. From http://www.thelinuxrain.com/articles/bash-drivers-start-your-engines

	#include <stdio.h>
	#include <stdlib.h>

	// from http://www.thelinuxrain.com/articles/bash-drivers-start-your-engines
	// C version is about 2-4 times faster than perl version.

	int main (int argc, char *argv[])
	{
	if (argc != 2){
	printf("Usage: %s filename\n", argv[0]);

cubapp / adb-cast.sh

Created March 12, 2019 11:03

ADB way to cast screen from Android device to ffplay

	adb devices
	echo "Wait at least 10secs and use the Android screen"
	adb shell screenrecord --output-format=h264 - \| ffplay -probesize 1M -

cubapp / gist:dec68ea01655ed85e3cda84a4b5d56ae

Created September 18, 2019 12:50

Generate MD5 hash password with given salt

	python -c "import random,string,crypt; not_so_randomsalt = 'synergy';
	print crypt.crypt('', '\$1\$%s\$' % not_so_randomsalt)"

	$1$synergy$O31nVEgYyKUdmjDRPUq8p.

cubapp / SHA256-password-hash.py

Created September 18, 2019 12:53

Generate SHA-512 password hash

	python -c "import random,string,crypt;
	randomsalt = ''.join(random.sample(string.ascii_letters,8));
	print crypt.crypt('MySecretPassword', '\$6\$%s\$' % randomsalt)"

	# $6$glmhpDPn$TnHWDtgh9ATjfUfEGUPoiFq1wATR0aHmDtDWaDOZWJmtDVsgsqmMriUQNcdV2pR1kA6tYQTIfMOYubdgBStEx.

cubapp / howto-migratePSTintoThunderbird.txt

Created September 10, 2020 06:12

Migrate from Outlook PST to Thunderbird

	Terminal:
	sudo apt install pst-utils
	mkdir migrated-emails
	readpst -o ./migrated-emails -M -u -w -e -b outlook.pst

	Thunderbird:
	1. install "ImportExportTools NG" add on
	2. make new folder "MigratedEmails" in Thunderbird - preferably in "Lofal Folders"
	3. right click on MigratedEmails folder -> ImportExportTools NG
	-> import all messages from a directory

cubapp / dobble.c

Last active September 23, 2020 05:25

Dobble game card generator.

	#include <stdio.h>
	#include <stdlib.h>
	// Dobblo generator
	// Here is a C code inspired from @karinka's answer with a different arrangement of symbols.
	// https://math.stackexchange.com/questions/1303497/what-is-the-algorithm-to-generate-the-cards-in-the-game-dobble-known-as-spo
	//
	// It works for n being a prime number (2, 3, 5, 7, 11, 13, 17, ...).
	//
	// Number of symbols in a given card = n+1
	// Total number of cards = n^2 + n + 1