Bitcoin price exceeded $ 49,000

On Tuesday, February 16, the price of bitcoin rises. At 09:25, the first cryptocurrency is trading at $ 49,594.3 (+ 3.70%), according to CoinMarketCap.

Bitcoin adds 4% per day and trades about $49,500. The most popular cryptocurrency is once again attempting to storm the most important psychological and technical level of $50,000.

Confident overcoming of this mark will increase the buying momentum not only for Bitcoin, but for the entire cryptocurrency market. Along with BTC, all altcoins returned to growth.

The total capitalization of the cryptocurrency market jumped to $1.5 trillion. It seems that Elon Musk’s statement on the purchase of bitcoins for $1.5 billion was a kind of analogue of the statement of the head of the Federal Reserve about his readiness to continue stimulating the economy.

Together, these two events seem to have postponed the moment when a broad market correction began. Technical indicators indicate an overheated state of the market, but so far this does not interfere with growth. The RSI for the BTC/USD pair on the daily chart shows a transition to the overbought zone, but so far this trend is moderate.

Elon Musk continues to make loud statements, and this time he again paid attention to Dogecoin, inviting whales to buy back their coins in exchange for his support for the project. It is difficult to say exactly what goals Musk is pursuing in the context of Dogecoin, but such news feeds definitely cause positive vibrations in the crypto market.

Best JavaScript libraries

Lodash (

Lodash makes JavaScript easier by taking the hassle out of working with arrays, numbers, objects, strings, etc. Lodash’s modular methods are great for:

  • Iterating arrays, objects, & strings
  • Manipulating & testing values
  • Creating composite functions

Quill Text Editor (

Quill is a free, open source WYSIWYG editor built for the modern web. With its modular architecture and expressive API, it is completely customizable to fit any need.

Leaflet (

Leaflet is the leading open-source JavaScript library for mobile-friendly interactive maps. Weighing just about 39 KB of JS, it has all the mapping features most developers ever need.

Leaflet is designed with simplicity, performance and usability in mind. It works efficiently across all major desktop and mobile platforms, can be extended with lots of plugins, has a beautiful, easy to use and well-documented API and a simple, readable source code that is a joy to contribute to.

How to exit vim? And other required commands.

Vim is the most popular Linux text editor, it was created in 1978 and is used to present days.

Vim has two modes: “Command mode” where you can insert many commands, and “Insert mode” – where you can insert and edit text document. By default Vim open all documents in “Command mode”, to enter into the “Insert mode” – press button “i“.

The most asked question is – “How to exit Vim?” – it is very simple – in Command mode enter :q! and press Enter. This command exit Vim without saving any changes.


To save file – enter command :w <filename> and press Enter:

:w file.txt

To save file and exit Vim use command :wq and press Enter


How to uninstall program installed in Wine?

You just need to write in terminal command:

wine uninstaller

This command will start an Add/Remove applet similar to what you get in Windows, which will list your installed WINE programs.

Select program and press button “Uninstall”.

It was very simple đŸ˜‰

How to set default browser in Debian Linux

To set default browser in Debian or Ubuntu open terminal and write command:

sudo update-alternatives --config x-www-browser

As you can see, we have four alternatives of browsers, installed in operating system, just enter number of browser and press Enter.

How to set permissions to files and folders in Linux terminal

There are there types of file permissions in Linux:

1. Owner permissions
2. Group permissions
3. Other permissions

Also you can set permissions for read, write and execute file for this three groups.

To set correct permissions for all files and folders in currend folder use command:

find . -type f -print0 | xargs -0 chmod 644
find . -type d -print0 | xargs -0 chmod 750

This commands will grant readm write, execute access for owner, read access for group and block all access for other users.

If you wand to grant access to files and folders for other users use commands:

find . -type f -print0 | xargs -0 chmod 665
find . -type d -print0 | xargs -0 chmod 751

Best Bootstrap alternatives in 2021

Bootstrap is the most popular CSS front-end framework. It is amazing in its capabilities, but there are other frameworks that might be good enough for you. Here are 10 of the best alternatives that you should definitely try.

1. Foundation

A Foundation framework for any device, medium, and accessibility. Foundation is a family of responsive front-end frameworks that make it easy to design beautiful responsive websites, apps and emails that look amazing on any device. Foundation is semantic, readable, flexible, and completely customizable. You cat get templates for your website:

2. Uikit (

A lightweight and modular front-end framework for developing fast and powerful web interfaces.

This framework contains hundreds of components, buttons, forms, icons, modals and other UI components for your website. Full documentation of this framework You can see on this website:

3. Materialize (

A modern responsive front-end framework based on Material Design. Material design is a language created by Google that combines traditional design methods with innovation and technology.

You can simple start using Materialize, just go to the page: and download Materialize framework to your project.

4. Metro (

Metro 4 is a component library for developing sites with HTML, CSS, and JS. Quickly prototype your ideas or build your entire app with responsive grid system, extensive prebuilt components, and powerful plugins.

Metro 4 developed to build websites in Windows Metro Style and include general styles, grid, layouts, typography, 100+ components and routines, 600+ built-in icons.

Metro 4 is an open-source and has an free dual licensing model.

Encrypt and decrypt files using GPG

To install GPG on your Debian/Ubuntu/Mint Linux operating system use command:

sudo apt-get install gpg

Default GPG folder is: /home/user/.gnupg. Generate private and public keys:

gpg --full-gen-key

Answer the several questions (encryption type: RSA, keysize: 4096 for better encryption, key expiration time, your name and email address) and press “O” if all changes are correct.

To view public keys use command:

gpg -k

To view secret gpg keys use command:

gpg -K

How to run custom file with Wine .exe in Linux Mint

To run Windows programs in Linux we use Wine. But how to open any file with exe program using Wine? For example we have 1.txt file. To run this file with notepad.exe use command:

wine "/home/user/notepad.exe" 1.txt

To associate some type of files with EXE program we can use shell script:


PARAM=`winepath -w "$*" 2>/dev/null`
exit 0

Put this file in /home/user/bin directory. Open file properties and in field “Open with” select script:

How to disable and enable hardware in Windows using command prompt

Sometimes bad driver of hardware load one or all cores of CPU by 100%. Some hardware has no other versions of driver and we must use bad driver.

Solution is – disable and enable hardware in Hardware manager. To do this automatic use script:

set HARDWARE_ID="PCI\VEN_8086&DEV_4229&SUBSYS_11018086&REV_61"
devcon disable %HARDWARE_ID%
timeout /t 3
devcon enable %HARDWARE_ID%

I created two files: Stop.bat and Start.bat. First stop bad device when Windows is shutting down, and the second start hardware when windows is starting. This solution help’s me and CPU no longer load by 100%