Greatest Hits

12
votes
1answer
30k views

How to install numpy and scipy for python?

I am tired to try to install numpy and scipy for phyton 2.7.5, I need this version of python because my final goal it's to install class (http://class-code.net/) and montepython ...
11
votes
1answer
12k views

Only MKV format available in HandBrake

I am running Ubuntu 14.04 LTS 32 bit. I have installed HandBrake rev5474 (i686), which I believe is the latest, and the Ubuntu Restricted Extras. I am able to play DVDs via VLC but when it comes to ...
3
votes
6answers
55k views

NVIDIA Graphics - resolution problems with new 12.04 LTS installation

I've been trying to install Ubuntu 12.04 LTS on my desktop most of the day. The desktop uses a NVIDIA GEFORCE 9800 (GT I think) graphics card. I am unable to set the correct resolution (1680 x 1050) ...
7
votes
3answers
29k views

How do I add a network drive to Plex?

So I've been looking around and can't find an exact solution to my problem. I dual boot Windows 7 and Ubuntu 13.04. I like Ubuntu and want to use it instead of windows. Everything was working on ...
12
votes
3answers
28k views

Difference between Unity and GNOME

I often come across the terms Unity and GNOME while reading about Ubuntu. I understand that Unity is the default desktop environment for Ubuntu. What is GNOME and how is it related to/different from ...
10
votes
1answer
25k views

Command to change the wallpaper in XUbuntu

Doing a google search reveals the command xfconf-query -c xfce4-desktop -p /backdrop/screen0/monitor0/image-path -s <image-path> The first time I run this command I got a message saying that ...
12
votes
8answers
14k views

How to show only hidden files in Terminal?

I have a directory that contains thousands of files, some of them are hidden. The command ls -a list all files, including hidden ones, but I need just to list hidden files. What command should I ...
4
votes
1answer
30k views

Run executable file on terminal

I'm new to Ubuntu and currently on it because of assignment. I would like to ask few questions: 1) How do I make new command to run a shell script? For example, when you type "passwd" on terminal ...
37
votes
2answers
15k views

How to play Diablo III on Ubuntu?

Is it possible to play Diablo 3 on Ubuntu? What should I install to play D3 with good graphics? How can I get an Nvidia video card to work well with Diablo III?
7
votes
1answer
15k views

Ubuntu 14.04: nvidia drivers cannot be installed

I have an Asus laptop with a nVidia card. lspci tells me: 01:00.0 VGA compatible controller: NVIDIA Corporation GF119M [GeForce 610M] (rev a1) I did a fresh install of Ubuntu 14.04 LTS (64-bit ...
5
votes
4answers
21k views

How do I get HTML5 h.264 Video working on Firefox?

According the the release notes for Firefox 26, h.264 video should now be working in Linux. It does also say the appropriate gstreamer plug-ins need to be installed. Does anyone know what these are? ...
3
votes
1answer
12k views

Gtk-WARNING **: cannot open display: on Ubuntu Server

I've simply been trying to get Sublime Text 2 running on Ubuntu Server 14.04 LTS on a Virtual Machine but also get the same error trying to run gedit so this leads me to believe it's an environment ...
3
votes
3answers
15k views

apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName … waiting apache2:

I upgraded to ubuntu 14.04 yesterday. But after restarting PC , this message continues to appear in a black screen after the ubuntu loading screen and don't go away and ubuntu doesn't start I can do ...
2
votes
2answers
28k views

Installing Nvidia drivers on Ubuntu 12.04

So, I've been trying to run Steam on my computer (hp Pavilion dv7, Ubuntu 12.04), but I end up with the following error : Xlib: extension "GLX" missing on display ":0". After some research, I ...
15
votes
2answers
49k views

Connecting to ubuntu server via ssh externally

I have recently installed ubuntu server (12.0.4) and intend to use it primarily as a file server. I am completely new to linux so this is a pretty big learning curve. Yesterday I was able to ...
26
votes
5answers
30k views

Ubuntu as Miracast Sender/receiver

couldn't find anything about Ubuntu act as a Miracast receiver or sender. General info about Miracast at Wikipedia Should this work? Supported HW? (Wifi direct?) only via WiFi no LAN? If Wifi direct ...
4
votes
5answers
14k views

Installing Mysql Workbench on ubuntu 14.04

I have installed MariaDb as its supported by Ubuntu community , mentioned in release note of latest LTS. After that I tried to install Mariadb-client , that too installed successfully, after that its ...
19
votes
4answers
15k views

What is the meaning of 'i686' in Ubuntu?

To check whether I am using 32bit or 64bit Ubuntu. I looked in How do I check if I have a 32-bit or a 64-bit OS? and found this answer uname -a. If it is shown as i386, it will be 32bit and amd64, it ...
18
3
votes
4answers
29k views

How to run mysql command from terminal?

I have the following sql command which I usually run in phpmyadmin by selecting the database, then running it in the command window. DELETE FROM `wp_posts` WHERE `post_type` = "attachment" However ...
5
votes
2answers
31k views

How to fix Permission Denied (Public key) error?

While trying to communicate between my desktop Ubuntu 12.10 and Fedora 19 desktop, I am facing the error of Permission Denied (Public key). I am able to login through ssh from fedora to Ubuntu, but ...
10
9
votes
4answers
33k views

How can I run Disk Utility in terminal via a comand line?

First of all, I must say that I have successfully used Disk Utility in the past and thus I could rename my partitions. But yesterday, I saw that my partitions are not mounted, so I used Storage ...
0
votes
2answers
8k views

How to move taskbar to bottom position as in Windows

I'm very new to Ubuntu. I have just installed it on my pc and i liked it. But as i'm from Windows background i like the taskbar at the bottom and not at the left position. So is there any way to move ...
7
votes
8answers
15k views

Pinging computers on local network: destination host unreachable

I have two ubuntu computers on a local network and neither one of them can ping each other. Every time I try I get the "destination host unreachable" error message. Both computers are able to access ...
2
votes
3answers
15k views

Can't create application launcher in Lubuntu 14.04

In Lubuntu 13.10 you could create a custom application launcher by right-clicking on the desktop and selecting "Create New..." then selecting the option, but in 14.04 this option is gone (now you can ...
1
vote
3answers
16k views

Play subtitle on online streaming movies

I want a player which can play subtitles while I am watching online movies. I have tried VLC network streaming. It's not happening. Well, there is a Windows app called Greenfish Subtitle Player, ...
31
votes
3answers
19k views

What is the “sticky bit” (t permission) and why does /tmp have it?

The command ls -ld /tmp gives drwxrwxrwt 30 root root 20480 Mar 11 14:17 /tmp What is the letter t after the permissions? As far as I know /tmp is used to create temporary files related to ...
0
votes
4answers
10k views

Bluetooth not working in ubuntu 14.04 LTS

Since when I got rid of windows 8 and installed ubuntu, my bluetooth never really worked. Ubuntu detects the bluetooth hardware (it shows the bluetooth icon in the status bar), and I can turn it on or ...
4
votes
3answers
29k views

Copying multiple specific files from one folder to another

I have a large folder of pictures (thousands), and I have a long list of files, by exact file name, that I need to copy to another folder. I want to know if there is a way I can select several ...
8
votes
2answers
41k views

How to give nopasswd access to multiple commands via sudoers?

Below is what I know: I have to add this below line in sudoers file to give rights to the user for particular task. user_name ALL=NOPASSWD: /usr/bin/apt-get install In this case I want to give ...
15
votes
4answers
18k views

How to install pip for python 3 in ubuntu 12.04 LTS

I am trying to install the Pillow module for python 3.3, but for that I need to install pip. Every time that I install pip it installs for python 2.7, any help?
13
votes
3answers
32k views

Is it safe to remove old kernels after installing the latest mainline?

I have installed the mainline kernel 3.10 as recommended here so that I can have my WiFi. I'm running into space problems as described here (dpkg configuration running out of space, having separate ...
28
votes
2answers
24k views

How do you run a 32-bit program on a 64-bit version of Ubuntu?

I have a 64-bit version of Ubuntu 13.10. I want to run a 32-bit version of a program. However I see ia32-libs is not included in 13.10. Is there a replacement package for this or what?
7
votes
1answer
24k views

“wrong fs type, bad option, bad superblock” error while mounting FAT Drives

I am unable to mount any fat32 or fat16 formatted usb disks under Ubuntu 13.10. The thing here to note is that it is happening only with fat formatted Disks. ntfs, ext formatted external usb disks ...
3
votes
3answers
14k views

cp - cannot create regular file : permission denied

I want copy to /lib/udev but gives error cp -f /tmp/ok_pcscd_hotplug.sh /lib/udev cp:cannot create regular file /lib/udev/ok_pcscd_hotplug : Permission denied I am root , but I can't understand . ...
8
votes
1answer
23k views

Where are the postfix log files?

I know this has been asked a hundred times. But I've done a lot of Google searching without success. My question: I want to log every activity of my postfix server. Neither the default file ...
3
votes
3answers
15k views

Ubuntu 12.04 to 14.04 LTS Upgrade Crash!

I'm in a pretty bad situation right now. I ran the following terminal commands to upgrade my Laptop from 12.04 LTS to 14.04 LTS, and left my computer to let it sit to do its thing. When I came back, ...
8
votes
1answer
38k views

How to install Qt4 in Ubuntu 12.10

I tried to use Qt5 but I have some problems while making Debian packaging process with Qt5 so I would like to have Qt4 on Ubuntu 12.10. How can I install Qt4.
11
7
votes
4answers
32k views

SSH error: Permission denied, please try again

I am new to ubuntu. Hence please forgive me if the question is too simple. I have a ubuntu server setup using amazon ec2 instance. I need to connect my desktop (which is also a ubuntu machine) to the ...
4
votes
1answer
13k views

Xubuntu 14.04: Screen Resolution 1440x900, no xorg.conf or lightdm.conf

So I'm quite confused now by the fact that I read a lot of different solutions for a Screen Resolution problem, but none of them apply to my case (I think). So I'm running a Xubuntu 14.04 x64 and ...
3
votes
1answer
7k views

TOP showing a bunch of rcuos processes

i ran TOP and im showing a ton of these rcuos processes below. What are these? top - 21:41:15 up 22 days, 19:20, 1 user, load average: 0.00, 0.01, 0.05 Tasks: 332 total, 1 running, 331 sleeping, ...
9
votes
3answers
17k views

What is $DISPLAY environment variable

I am new to shell script NOT able to understand what is $DISPLAY environment variable. I am running Ubuntu 13.10 and using /bin/bash shell. I have connected two monitors. Questions: echo $DISPLAY ...
3
votes
4answers
14k views

Mount external Hard Drive with /etc/fstab on ubuntu 14.04 problems

I have been stuck for about two days trying to get this to work properly. I have done all of the following with still no luck. I'm trying to auto permanently mount to a 2 TB Seagate Central that is ...
2
votes
1answer
7k views

How to install driver for TP-Link TL-WN722N on Ubuntu 14.04?

Hi I am new to Ubuntu and Linux. As I am developing a WiFi product, I want to capture the WiFi traffic wirelessly with Wireshark. Having some searching in the web, I know that I can do that with a USB ...
8
votes
1answer
26k views

iptables log file,and how change it

I have this rule in my iptables: iptables -AINPUT -s 192.168.11.0/24 -j LOG My question is: Where is the iptables log file, and how can i change that?
9
votes
1answer
21k views

32-Bit UEFI Boot Support

I recently purchased a Dell Venue 8 Pro. I have read online about what it needs in order to boot into Ubuntu or any other Linux distro. From what I have gathered, what really needs to happen is ...
3
votes
1answer
6k views

“error adding symbols: DSO missing from command line” while compiling g13-driver

I'm trying to compile the download received here: https://code.google.com/p/linux-g13-driver/ by running make but I'm receiving errors that to me, after searching on the web, look like they're the ...
7
votes
3answers
15k views

What are the differene between fglrx and fglrx-updates?

What are the difference between the two ATI drivers fglrx and fglrx-updates, and what one should I install with a machine with an AMD R7 260X video card? I have found outdated information on the Steam ...
6
1
vote
3answers
32k views

Ubuntu Server 12.04 remote desktop access

I have an Ubuntu 12.04 server at home with GUI running. It does many things, like Apache virtual hosts (several WordPress sites hosted for me and my mates), Samba server, Mini DLNA server and some ...
1
vote
2answers
14k views

ATI Graphics Driver in Ubuntu 14.04

I am using a Lenovo Ideapad laptop with graphics card configuration as Radeon HD 8570A/8570M on Ubuntu 14.04. It shows me "The System is running in low graphics mode" while booting. So i am following ...
18
votes
3answers
17k views

How to find and list all the symbolic links created for a particular file?

I had created many symbolic links on various paths for a particular file or a directory. I want the whole list of created symbolic links paths (location). Example: I created symbolic links for ...