Ask Ubuntu
Ask Ubuntu

Most Popular

more tags
1500 questions
196
votes
6 answers

How do I increase the size of swapfile without removing it in the terminal?

Is there a way to increase my existing "swapfile" without having to destroy and re-create it? I would like to up my swap space from 1GB to 2GB. Currently it is set up as such: $ sudo swapon -s Filename Type Size Used …
Dave
  • 2,315
196
votes
9 answers

Is there any Sound enhancers/equalizer?

What I am looking for is to have system wide implementation of sound enhancements like bass boosts, echoes, Fidelity, Stereo enhancement and so on. Audio Video players have their own equalizer but they enhance only the audio / video files they are…
user15873
  • 2,063
196
votes
16 answers

How do I install the latest version of node.js?

How do I install the latest node.js on Ubuntu? I've been looking around, and I can't find anything. Is there a Ubuntu package for node.js, or do I have to compile it myself?
jrg
  • 61,707
196
votes
21 answers

Is there software that can fill PDF forms?

I have some PDFs which are actually forms, with fields to fill. Is there some software that can fill those fields?
Pablo Fernandez
  • 2,651
196
votes
16 answers

How to make a sound once a process is complete?

I have started a long process through a terminal. Is it possible to make the Ubuntu terminal make a sound once the process is complete? This way, I don’t need to keep checking, but will instead be notified through a sound.
Goaler444
  • 2,073
196
votes
1 answer

What's the difference between set, export and env and when should I use each?

Every so often I'll bash out a bash script and it strikes me there are a few ways of setting a variable: key=value env key=value export key=value When you're inside a script or a single command (for instance, I'll often chain a variable with a Wine…
Oli
  • 299,380
196
votes
8 answers

How to set default Java version?

I followed all the instructions stated at this question, but am encountering some problems with the last part of it. I actually have version 6.22 of java and would like to update to version 6.30. So after moving the extracted directory java-6-oracle…
Matteo
  • 2,357
195
votes
16 answers

Slow boot - "a start job is running for dev-disk-by..."

I don't recall when the issue started to occur but it's likely when I moved my VMWare Ubuntu image to an external SSD so that I can use the OS on any of my PCs. There aren't many links on Google about the issue but the ones that appear talk about…
cpd1
  • 2,503
195
votes
6 answers

What are the differences between "su", "sudo -s", "sudo -i", "sudo su"?

I already read it from manual but I can't see difference.. su - change user ID or become superuser sudo -s [command] The -s (shell) option runs the shell specified by the SHELL environment variable if it is set or the shell as specified in…
Smile.Hunter
  • 8,705
195
votes
4 answers

Keyboard locks in IntelliJ IDEA on Ubuntu 14.04

Could you help me with hell of a weird issue? I use Intellij IDEA 13 on Ubuntu 14.04, and from time to time my keyboard completely (yep, completely, it's not about shortcuts) locks in IDEA. I still can do anything I want in IDEA with my mouse, also…
Treble Snake
  • 2,053
195
votes
10 answers

How can I reduce or increase the number of workspaces in Unity?

I was reading about how to get multiple workspaces in the mutter version of Unity, however since Compiz is replacing Mutter how do I go about adding and removing workspaces in Compiz version of Unity?
Marco Ceppi
  • 48,827
195
votes
9 answers

How can I use a .ovpn file with Network Manager?

I have a .ovpn file with my VPN config - it works fine when I do sudo openvpn --config ~jrg/Documents/vpn-config.ovpn in the terminal, but I'd like to use Network Manager. How can I do this?
jrg
  • 61,707
195
votes
1 answer

What do VIRT, RES and SHR mean in the top command?

I've been learning about the top command. There are some terms on which I am confused. I need some clarification. What are the WA, HI, SI and ST terms in the CPU(s) row, and also VIRT, RES and SHR?
Ankit
  • 6,989
194
votes
6 answers

unzip error "End-of-central-directory signature not found"

I try to unzip a zip file, but got an error: $ unzip COCR2_100.zip Archive: COCR2_100.zip End-of-central-directory signature not found. Either this file is not a zipfile, or it constitutes one disk of a multi-part archive. In the latter…
Tim
  • 26,107
194
votes
25 answers

How to fix "W: Duplicate sources.list entry"?

I keep getting this warning whenever I try to run sudo apt-get update. W: Duplicate sources.list entry http://archive.ubuntu.com/ubuntu/ precise-updates/main i386 Packages…
hsinxh
  • 3,190
1 2 3
…
99 100