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1500 questions
167
votes
5 answers

'chmod u+x' versus 'chmod +x'

What is the difference between chmod u+x and just chmod +x? I have seen a ton of tutorials that say to use u+x to make scripts executable. However, omitting the u doesn't seem to have any effect.
Nathan Schwermann
  • 2,187
167
votes
3 answers

What's the right terminology for Unity's UI elements?

I've sent a few mails to the Ayatana mailing list regarding some UI suggestions for Unity, but I'm afraid I keep confusing the right terms for the UI element, so I would like to have some clarification. Answer Index: Ubuntu 12.10, 12.04 LTS and…
Bou
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166
votes
5 answers

How to disable systemd-resolved in Ubuntu?

How can I disable systemd-resolved in Ubuntu 17.04? Disabling it with systemctl disable didn't work, the service seems to be restarted (by Networkmanager?)
Bastian Voigt
  • 4,696
166
votes
18 answers

How to fix virtualbox's copy and paste to host-machine?

Sometimes while using VirtualBox, I have tried copying text from the virtual machine to the host machine but failed. Whenever that happens, I fix it by rebooting the virtual machine. Is there a solution to this because I don't want to keep…
sam
  • 6,831
166
votes
4 answers

Can I access Ubuntu from Windows remotely?

I have Ubuntu installed on my work computer. I am wondering whether I could have access to it from another computer with Windows installed. If so, could you give a step by step guide?
LaTeXFan
  • 1,777
166
votes
20 answers

USB devices showing as read only

I am using Ubuntu 14.04. I have an 8gb FAT32 USB stick and a 500gb FAT32 HDD; both of these have suddenly become read only devices. I've tried deleting the directory inside /media and then creating it again, renaming it, then giving that directory…
oodles2do
  • 1,823
166
votes
8 answers

How do I find out which version and derivative of Ubuntu is right for my hardware in terms of minimal system requirements?

For a given hardware configuration, how do I find out if Ubuntu will run on it? What considerations should I take into account when choosing an Ubuntu version and flavour such as: Xubuntu with a lighter desktop than the usual Gnome and…
con-f-use
  • 18,813
166
votes
8 answers

Whats the simplest way to edit and add files to "/var/www"?

Having installed the web server is there a simple way to set a user able to use the graphic interface to copy files and directories to the local web server /var/www I gave myself administrative privileges in Ubuntu but it still doesn't allow copies.
k_graham
  • 1,761
166
votes
5 answers

What is the correct way to install proprietary ATI Catalyst Video Drivers (fglrx) directly from AMD?

I am planning on doing a fresh install of Ubuntu and want to know what is the correct way to install ATI Catalyst Video Driver? There are multiple valid answers for this question spanning over several versions of Ubuntu. For your convenience an…
stephenmyall
  • 9,855
166
votes
11 answers

How to hear my voice in speakers with a mic?

I have a USB microphone that I can chat on Skype, record sound etc. But how can I make it so that when my mic is on and I speak, Ι hear it in speakers live without having to record my voice first and then play it back? What apps do I need or where…
Martin Zeltin
  • 5,323
166
votes
2 answers

What does outputting to /dev/null accomplish in bash scripts?

Oftentimes I run into small bash scripts that use this sort of syntax in if statements: some command > /dev/null 2>&1 What is the purpose of outputting to /dev/null like that, and what does the 2>&1 mean? It always seems to work but I'd like to know…
javanix
  • 1,793
166
votes
6 answers

Unable to install "": snap "" has "install-snap" change in progress

I just finished the installation of the Ubuntu 18.04, but whenever I try to install any application from Ubuntu Software the same error occurs (for example "vlc"): unable to install "vlc": snap "vlc" has "install-snap" change in progress I hope…
CluelessUbuntuuser
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165
votes
8 answers

A start job is running for wait for network to be configured. Ubuntu server 17.10

i just installed ubuntu server on my laptop and everything works fine except for the fact that at boot if the laptop is not connected to ethernet or in range of my wi-fi i get this message "A start job is running for wait for network to be…
vlad27
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165
votes
6 answers

What does this apt error message ("Download is performed unsandboxed as root...") mean?

I get it after updating in Synaptic Manager I recently did a clean install of Ubuntu 17.04 from 16.10. error message:- W: Download is performed unsandboxed as root as file…
Julian Arthurs
  • 1,653
165
votes
12 answers

Wifi doesn't work after suspend after 16.04 upgrade

This particular version of the "doesn't work after suspend" came after upgrading to 16.04. It seems that the upgrade includes a Wicd applet (added to Metacity Classic Gnome task bar alongside regular network icon), but doesn't seem to work after a…
147pm
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