Ask Ubuntu
Ask Ubuntu

Most Popular

more tags
1500 questions
140
votes
4 answers

How do I install Chromium from the command line?

I have already tried using the Ubuntu Software Center, but it won't install the Chromium browser. How can I install it using the terminal?
Cristian Sierra Cardenas
  • 1,503
140
votes
9 answers

Software to read a QR code?

I saw a QR code reading a book, but I don't have a smart phone to decode it. So I just took a picture of it and saved the picture to my PC. I downloaded libdecoderqr0, libdecodeqr-dev, and libdecodeqr-examples for reading it. But I don't know how to…
Benjamin
  • 10,229
140
votes
3 answers

18.04 ctrl+shift to change language

Can I use Ctrl+Shift for changing languages? I can't set this hotkey for changing keyboard languages. At this moment Alt+Shift switch languages, but I can't see this hotkey in keyboard hotkeys list or in gsettings list-recursively …
Hayate
  • 1,503
139
votes
5 answers

How to fix apt: Signature by key uses weak digest algorithm (SHA1)?

I started setting up by adding repositories and then went to run a sudo apt-get update again before I started installing other software, and I get the Signature key lines and it stops. So it essentially won't let me update any packages…
dlchang
  • 1,491
  • 2
  • 10
  • 4
139
votes
9 answers

How to copy & paste from Ubuntu VirtualBox guest to Windows host?

I am running VirtualBox 4.1.4 on my Windows 7 laptop, running an Ubuntu 11.10 guest. I would like to copy text from Ubuntu's terminal and paste it into a file on the Windows host. This doesn't work for some reason. Any ideas?
Misha Moroshko
  • 1,649
139
votes
12 answers

Is there BitTorrent software that runs in a terminal?

I want to deploy it on my VPS server to download resources quickly. This could save me a lot of time since some resources are in a foreign country,
mlzboy
  • 211
139
votes
7 answers

Why are swap partitions discouraged on SSD drives, are they harmful?

I often read that one should not place swap partitions on a SSD drive, as this may harm the device. Is this true? Can you please explain the reason to me? Because I otherwise would have thought that placing swap on an SSD is the best choice, as it's…
Byte Commander
  • 110,243
139
votes
3 answers

How do I set 'nomodeset' after I've already installed Ubuntu?

I know that editing the boot options line and adding 'nomodeset' solves the problem of my laptop during LiveCD mode, what I don't know is how to set it at boot up through Grub2 after I've installed Ubuntu. So, my question is; how do I set nomodeset…
Dante Ashton
  • 5,595
139
votes
6 answers

Mouse cursor flickering and disappearing

I installed Ubuntu today and since the first start up I have a problem with the mouse cursor. It starts randomly disappearing and flickering a lot. I have searched for a solution on Google and here but didn't find anything.
user203715
  • 1,401
139
votes
8 answers

What to do when Ctrl-C won't kill running job?

Sometimes, processes ignore the SIGINT signal sent by Ctrl-C in Bash. For instance, man and vi. Assuming you don't want to google or read the manual on how to exit the running process, is there any key sequence that will always work (without leaving…
Olivier Lalonde
  • 60,581
139
votes
4 answers

How do I add an additional hard drive?

I am going to put an additional (non-USB) hard drive in my system. I already have Ubuntu on my other hard drive so I do not want to install Ubuntu on the additional drive but only use it for storage. How do I add the additional hard drive to my…
N.N.
  • 18,589
139
votes
5 answers

Drawbacks of using preload? Why isn't it included by default?

I would like to know what are the drawbacks of using preload? If there would be no downside, preload would be enabled by default, so I guess there are some. Okay you need a bit more RAM, but most people have by far more RAM then Ubuntu needs - so…
Paradiesstaub
  • 4,391
138
votes
14 answers

Generate white noise to calm a baby

I have a three week old baby. Occasionally she refuses to sleep. Some people tell me this is the way life is, some people tell me I need to buy things to fix it. This is becoming an alarmingly common pattern in this parenting game. Anyway one of…
Oli
  • 299,380
138
votes
3 answers

How to disable IPv6 in Ubuntu 14.04?

I am using Ubuntu 14.04. And I have done the following to disable ipv6. I have open /etc/sysctl.conf using gedit and paste the following lines at the end of sysctl.conf. net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 =…
A J
  • 11,557
137
votes
4 answers

Extract part of a video with a one-line command

If I have a video, normally avi, but could be any, and I want to create another one in the same format but just a part, the position i seconds to f seconds into the video, what is the one-line command to do this?
Strapakowsky
  • 12,304
1 2 3
…
99 100