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 😉

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%

How to install latest wine on Ubuntu or Linux Mint

The official WineHQ repository has a set of standard Wine packages that you can download and install on your system. Please follow these steps to do so:

Run the following command in the Terminal for adding i386 architecture before installing a 64-bit version of Wine:

sudo dpkg --add-architecture i386
Next add the WineHQ signing key:

wget -qO- | sudo apt-key add -

Then run this command to import the other key for the WineHQ Repository:

sudo apt-key adv --keyserver hkp:// --recv F987672F

Now run the following command in order to add the relevant repository from the WineHQ:

sudo apt-add-repository 'deb bionic main'

Next update the Ubuntu package lists with the command:

sudo apt-get update

Now we can install latest stable version of Wine in Ubuntu or Linux Mint operating system:

sudo apt-get install --install-recommends winehq-stable

Linux how to fix ext4 filesystem

Sometimes if server is shutdown incorrect filesystem filesystem can be corrupted and loaded in “read only” mode.

To check file system status use command:

mount | grep /dev/sd

This command show filesystem status, if filesystem is read only – you will see “ro” status: /dev/sda2 on / type ext4 (ro,readonly,data=ordered)

To fix filesystem use command:

fsck /dev/sda2

This command will fix all errors on filesystem, To apply fix enter y on keybord. When fixing is complete reboot system and check filesystem again.

How to get SMNP information from router using PHP

First install SNMP package:

sudo apt-get install snmp

To use SNMP in PHP install php-snmp extention:

sudo apt-get install -y php-snmp

Get SNMP information from router user command:

snmpwalk -v2c -Cc -c public > out.txt

This command will get all SNMP information from router and save it into file out.txt

Now let’s create file index.php and write code that will get all MAC addresses from BDCOM P3310 OLT. To get all MAC addresses use OID: iso. In PHP file create function SnmpGet:

function SnmpGet($host, $community, $object_id){
    exec("snmpwalk  -v2c -Cc -c ".$community." ".$host." ".$object_id, $snmpWalkReturn);
    foreach($snmpWalkReturn as $value){
            $oid = explode("=", $value);
            $walk[trim($oid[0])] = trim($oid[1]);
    return $walk;

Put SNMP result in variable $MacResult:

$MacResult = snmprealwalk2($hostname, $community, "iso.");

In cycle foreach go through all elements and remove unnecessary data:

    foreach($MacResult as $Item => $Value)
        $Oid = str_replace("iso.", "", $Item);
        $Mac = str_replace("Hex-STRING: ", "", $Value);

        if(!strpos($Mac, "STRING:")){
            echo $Mac.' | '.$Oid;

Similarly get EPON interface id from OID: iso.