Soluții pentru problemele tale IT
Windows redă un sunet de pornire și alte efecte sonore în mod regulat și pot deveni dezastruoase. Sunt deosebit de enervante pe Windows 7, unde Windows redă un sunet de clic de fiecare dată când schimbați folderele în Windows Explorer. Puteți să le dezactivați complet sau chiar să setați efecte sonore personalizate, dacă preferați.
[mai mult...]As a beginner, you may need to know how to change any default application in Ubuntu and this is what I am going to show you in this tutorial.
There are basically two ways you can change the default applications in Ubuntu:
1. Change default applications in Ubuntu from System Settings
Simply head to the System Settings:
In the System Settings, click on the Details option:
Now, click on the “Default Applications” option as highlighted in the screenshot below:
As you can see, there are only a few kinds of default applications that can be changed here. You can change the default applications for web browsers, email clients, calendar apps, music, videos and photo here. What about other kinds of applications?
Let’s say you have a markdown file (.md) which opens in Gedit text editor by default. But you want to use some other applications to open markdown files. Here’s what you need to do.
Right click on the file and then select Open with Other Application:
If you don’t see your choice of application, click on the View All Applications:
Locate the desire application and select it:
Keep in mind that this behavior is not applicable to web browser, music player, video player, email client, calendar and photo viewer. For that you need to use the first method.
Formatul PDF este menit să asigure că formatarea unui document este păstrată atunci când este vizualizat pe diferite sisteme de operare și dispozitive. Dacă vizualizați un document pe un computer într-o cameră întunecată, este posibil să doriți să schimbați schema de culori, astfel încât ecranul să nu fie atât de luminos.
Have you ever gotten that horrible feeling? The one you get when you realize that you accidentally deleted files and it’s not even in the trash? Often it is immediately preceded by denial: I know I have another copy of it somewhere.
You need to install the TestDisk tool first. Most Linux distributions already have this tool in their official repository. In Ubuntu and other Ubuntu-based Linux distributions such as Linux Mint, elementary OS etc, you can use the command below to install TestDisk:
sudo apt install testdisk
Arch Linux users can install it from AUR. You can download it for other Linux distributions from the link below:
https://www.cgsecurity.org/wiki/TestDisk_Download
Run TestDisk in the terminal using the command below:
testdisk
When you open it, you’ll see something that looks like this. Be patient! The interface is actually straightforward but you do have to carefully read the text. Use the arrow keys to navigate and “enter” to select.
Now, at this point, if you’re lucky, you should see your drive. And you can proceed to the last steps. But let’s assume you’re not, that you have, say, a multi-boot machine. In this case, ownerships can get blurry, and Testdisk needs your permission to open them.
Testdisk has again selected the correct setting. This makes sense since a simple storage device is seldom partitioned. Again hit enter.
And finally, we have to do a little thinking to do. If you read the first screen, this program isn’t just for recovering deleted files. It’s a powerful disk utility. But if we remember what we’re trying to do the choice is fairly obvious: we’re not trying to fix a disk, we’re trying to recover a file. Select “Advanced” and hit “enter”.
Testdisk will scan for files and produce a list of deleted files highlighted in red. Arrow down to it and carefully read the choices at the bottom
.
Hit c to copy and thus recover the deleted file.
NumPy is a Python library used for working with arrays. It also has functions for working in domain of linear algebra, fourier transform, and matrices. NumPy was created in 2005 by Travis Oliphant. It is an open source project and you can use it freely.
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