dpkg commands...

 To install a package using the dpkg command in Linux, you can use the following command: 

Install a package: sudo dpkg -i <package.deb>

Here are some other things you can do with the dpkg command:

List known packages: Use the -l tag: dpkg -l 

Remove a package: Use the -r tag: dpkg -r <package> 

Purge a package: Use the -P option: sudo dpkg -P <package> 

Unpack a package: Use sudo dpkg --unpack <package.deb> 

Configure a package: Use dpkg --configure <package> 

Check if a package is installed: Use the -s tag: dpkg -s <package> 

Show package information: Use dpkg -I <package.deb> 

List all available dpkg commands: Use the -help option: dpkg –help 

Wallpaper change in windows 10

You can set the wallpaper using the Local Group Policy Editor (gpedit.msc), at User Configuration > Administrative Templates > Desktop > Desktop, group policy "Desktop Wallpaper". Set the policy to Enabled, enter the file path and click OK.

In the registry, this is set at key HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System (you may need to create missing sub-keys). Create two REG_SZ items, one named Wallpaper for the path to the image file, and the other WallpaperStyle whose value is 4.

How to fix printing issues in Thunderbird

If you're experiencing issues printing from Thunderbird, the most likely solution is to go into your Thunderbird settings, access the "Config Editor," and "Reset" the "print_printer" setting, which essentially resets your default printer within the application; this usually requires restarting Thunderbird to take effect. 

How to fix printing issues in Thunderbird:

Open Thunderbird settings: Go to "Tools" > "Options" > "Advanced" > "General".

Access Config Editor: Click on "Config Editor".

Find print setting: In the search bar, type "print_printer".

Reset the setting: Right-click on "print_printer" and select "Reset".

Restart Thunderbird: Close and reopen Thunderbird to apply the changes.