SpeedUp Mouse Wheel on Linux

Increase wheel speed on Linux using imwheel. This will make scrolling easier, while use Chromium, Firefox, LibreOffice, viewing pdf files in Evince.


1. Install imwheel

apt install imwheel


2. Check the applications names

Check the names of applications that should be affected by imwheel settings. Run in terminal:

Configure Mouse Buttons as Copy and Paste on Linux

Extra mouse buttons on the side or also click on the wheel can be used for copy and paste or any other actions. To make extra buttons work as you need on Linux use next steps from ArchLinux wiki [1].


1. Install xbindkeys and xvkbd

xbindkeys allows to bind mouse buttons to any action like open terminal, open browser, copy to clipboard, paste.

xvkbd allows to send to system keyboard pressing like Ctrl + C, F5 and so on.

apt install xbindkeys xvkbd


Which HelloWorld Is Faster: Rust, C, C++, Bourne Shell, Python3?

Which program works faster? Does Rust compiler do things extra fast? Here are our simplest programs on Rust, C, C++, Bash, Python3. They were run 100.000 times and timings are measured.



Listing HelloWorld on Rust, main.rs

fn main() {
    println!("Hello, World!");


Listing HelloWorld on C, main.c

#include <stdio.h>
int main() {
    printf("Hello, World!\n");
    return 0;


Error on `git pull`: Permission denied (publickey). fatal: The remote end hung up unexpectedly

Sometimes my Devuan unexpectedly close the session, because of some JavaScripts on websites. After re-login I cannot connect to remote git repository with errors:

$ ssh remote_server
$ git pull
Error reading response length from authentication socket.
Permission denied (publickey).
fatal: The remote end hung up unexpectedly

Some people advise to start ssh-agent and load keys to ssh-agent, but that does not work in my case:

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System Monitoring Using Telegram Bot

Having systems that need a monitoring or alert about errors and fails you may use Telegram Bot. Next examples of using Telegram Bot help to watch the status of a long process, also to send lines from log, and even more, it is possible to send printscreens or also convert printscreens to text and then send it to your chat in Telegram.

This way you can monitor any process in your system with smartphone in any place.