Greatest Hits

46
votes
5answers
115k views

What is the equivalent of 'Control-Alt-Delete'?

On Windows anytime the system hangs Ctrl-Alt-Del brings up the Start Up Manager, from which you can end the program or process causing the hang. Is there any command like this on Ubuntu?
14
votes
6answers
106k views

How do I disable the “Nouveau Kernel Driver”?

I'm trying to install proprietary nvidia graphics driver I downloaded from nvidia website. It will not install because it says that the "Nouveau kernel driver" needs to be disabled first. I opened ...
156
20
votes
2answers
58k views

Install Popcorn Time from source files

How can I install Popcorn Time beta ? I see on their website that they only offer a 64-bit installation files, but the sources are open. I can't use the usual ./configure && make. So, what ...
73
votes
8answers
91k views

How do I setup dual monitors in XFCE?

I've got an laptop with a intel chip, and I'd like to setup dual monitors in Xfce. How do I do this?
43
votes
4answers
163k views

Difference between the i386 download and the amd64?

What is the difference between standard i386 download and the amd64 download of Ubuntu 11.04? I am currently running the i386 on an amd machine, would my system work better with the amd64 download ...
286
votes
10answers
214k views

What are PPAs and how do I use them?

I keep reading about Personal Package Archives ('PPAs') and people answer questions with a link to a PPA. What's the best way to use these? There are multiple valid answers for this question ...
113
67
votes
6answers
62k views

How can I recursively delete all files of a specific extension in the current directory?

How do I safely delete all files with a specific extension (e.g. .bak) from current directory and all subfolders using one command-line? Simply, I'm afraid to use rm since I used it wrong once and now ...
127
votes
10answers
107k views

How can I stop being prompted to unlock the 'default' keyring on boot?

Whenever Ubuntu boots up, a dialogue pops up asking me to unlock my default keyring. Is there some way this can unlock automatically through PAM or some other magical way?
26
votes
21answers
86k views

How can I access Flash files from streaming websites?

In Maverick, there was an option to download Flash videos from sites like YouTube, Vimeo, etc. by copying the flashxx** file in /tmp directory to another location before closing the window. But in ...
98
votes
4answers
75k views

How do I set focus follows mouse?

Is there a way to set up "focus follows mouse" behavior in Unity?
56
votes
10answers
167k views

How to make a disk image and restore from it later?

I'm a new Linux user. I've reinstalled my Wubi from scratch at least ten times the last few weeks because while getting the system up and running (drivers, resolution, etc.) I've broken something (X, ...
137
21
votes
4answers
113k views

How to create ISO images?

Let's says that I have a Microsoft Office 2010 on a .zip file, then I extract it into a folder, and now I want to build a .iso file from the files inside this folder. How can I do that?
53
votes
10answers
92k views

How to prevent “Write Failed: broken pipe” on SSH connection?

What can I do to configure SSH on both client and servers to prevent Write Failed: broken pipe errors? It often occurs if you sleep your client computer and resume later.
11
votes
8answers
98k views

How to configure proxy authentication to work with Ubuntu Software Center?

I have tried put in apt config Acquire::http::proxy, and in Network>Network proxy with and without user:password@server:port and using environment variables http_proxy and https_proxy. Nothing seems ...
80
votes
3answers
55k views

How to use Alt+Shift to switch keyboard layouts?

I recently upgraded to Ubuntu 13.10, with the new keyboard handling system. The little "switch keyboard" option does not let me set it to Alt+Shift. How can I get this keyboard binding, as I have ...
43
votes
6answers
86k views

How do I download and install Handbrake?

I'm new at Ubuntu so I don't know very well how to use the terminal in order to download and install programs that aren't in the software center. I've tried without success downloading and installing ...
70
votes
5answers
107k views

How to add a PPA on a server?

The server version of Ubuntu does not have the add-apt-repository command. How can I add a Personal Package Archive (PPA) to the server without this command?
176
12
votes
10answers
49k views

After upgrading to 13.04 Unity interface is not showing

I've upgraded to Raring last night. The upgrade itself went okay, no errors. But when I rebooted the computer afterwards and logged in to my Unity session, all I could see was the Desktop background ...
178
4
votes
1answer
120k views

How can I chmod 777 all subfolders of /var/www?

I’m running a webserver and FTP server, wherein /var/www is bound to /home/user/www. I set both directories to chmod 777 (which is fine since it’s for testing only). I can upload files into ...
56
votes
5answers
171k views

How to manage users and groups?

Just switched from 10.04 to 11.10. I'm wondering about the limited options in the GUI for managing users and groups. Where is the old GUI to change groups, id's, etc. I know that I can do this from ...
22
votes
4answers
74k views

I've downloaded a .sh file - how do I install this?

I'm new to Ubuntu and know installing programs only from window. It is very easy there: Just double-click the setup.exe and the things start. But how do I install a program on Ubuntu? I want to ...
192
8
votes
4answers
93k views

How to install and run UNetbootin?

Strangely, but true, you cannot install from the the original site, or run it. So how to install and run UNetBootin?
39
votes
2answers
26k views

Why this occurs error: Diskfilter writes are not supported

This message occurs when leaving the Grub menu and before the Ubuntu splash screen. How do I fix the problem to clear the message? And what doe is it mean? error: Diskfilter writes are not ...
29
votes
7answers
67k views

USB drive install of Ubuntu 12.04 Server fails - can't find components from CD-ROM

I'm trying to install Ubuntu 12.04 Server (32bit) on a machine here using a USB stick. I used the Universal-USB-Installer-1.8.9.4 which has support for 12.04 server to get the ISO onto the USB drive. ...
49
votes
4answers
83k views

Wine can't find gnome-keyring-pkcs11.so

I am trying to start a program using wine on Ubuntu LTS 12.04 64 bit When I do this, I get the following error message... /usr/lib/i386-linux-gnu/pkcs11/gnome-keyring-pkcs11.so: ...
15
votes
7answers
110k views

How do I convert .ts files into something useful?

I have a file that ends in .ts, which according to wikipedia is an MPEG2 file. I've never run into a file like this so I want it want the file to be in a more common format/container to use on ...
25
votes
5answers
76k views

USB turn write protection off

Hi I have a USB which is write protected: dmesg | tail [10098.126089] sd 7:0:0:0: [sdb] Write Protect is on [10098.126098] sd 7:0:0:0: [sdb] Mode Sense: 23 00 80 00 [10098.126779] sd 7:0:0:0: [sdb] ...
181
61
votes
10answers
81k views

Desktop does not show when I installed nvidia drivers!

The desktop does not show after I installed nvidia experimental drivers. I tried nvidia simple proprietary drivers, and they did not work either. Here is how it looks. This is not cropped or any ...
27
votes
4answers
86k views

How to read and write HFS+ journaled external HDD in Ubuntu without access to OS X?

I have a HFS+ journaled external hard-drive and need to be able to write to it on Ubuntu. I don't have access to my Mac, it's thousands of miles away and I won't have access to it for three months. ...
71
219
votes
32answers
110k views

Comparison of backup tools

This question exists because it has historical significance, but it is not considered a good, on-topic question for this site, so please do not use it as evidence that you can ask similar questions ...
138
votes
16answers
141k views

Is a NVIDIA GeForce with Optimus Technology supported by Ubuntu?

I am considering buying a Dell XPS 15 laptop. The laptop has a Nvidia 420m card which should work with Linux but I keep reading that the Nvidia Optimus technology isn't supported on Linux. I am not ...
130
votes
6answers
101k views

How do I remap certain keys or devices?

I'm searching for a way to remap certain keys in ubuntu. i.e. I'd like to change PgUp to Home or PgDown to End. Does a built-in command or a tool exist reassign keys in Ubuntu/GNOME?
32
votes
3answers
97k views

Boot failure : No DEFAULT or UI configuration directive found!

I've tried to install Ubuntu on a VMWare Virtual Machine, but it never gets past the bootloader : ISOLINUX 4.01 debian-20100714 ETCD Copyright (C) 1994-2010 H. Peter Anvin et al No DEFAULT or UI ...
111
votes
12answers
131k views

How do I change fonts and adjust their size?

I've been finding fonts on the internet and installing them on my system. What's the easiest way to change my fonts? I would prefer an easy to use graphical way, but answers with command line ...
156
32
votes
5answers
112k views

How do I connect to a WPA wifi network using the command line?

So basically, I'd like to use iwconfig to connect to my wifi network when I'm not inside X. But I just don't see a way to do it in the man page. Any idea?
27
votes
4answers
95k views

How can I install a .bin file?

I want to update Acrobat Reader for Firefox, but the download has the .bin extension. How can I install it?
16
votes
6answers
77k views

Installing MS Office 2013 on Ubuntu 12.04 LTS

I am trying to install Microsoft Office 2013 on Ubuntu 12.04 LTS (32-bit). I have downloaded an iso file of said product and installed wine1.4-i386 using the apt-get command on the terminal. The ...
15
votes
5answers
68k views

How to create a bootable Ubuntu USB flash drive from terminal?

Is there any way to create a bootable Ubuntu USB flash drive from the terminal without using any third-party applications like YUMI,Unetbootin, etc. I tried to create a bootable Ubuntu flash drive ...
20
votes
3answers
130k views

find a file using the terminal

I am trying to find a directory, using the terminal and I am not sure where it is. I mean that i used the wget command to obtain the file and used it for installation and now i am not able to find ...
42
votes
5answers
118k views

How to set the fully qualified domain name in 12.04?

I tried adding dns-domain domain.com to /etc/network/interfaces with no luck. When I run hostname -d I get an empty string
103
votes
8answers
107k views

How can I get apt to use a mirror close to me, or choose a faster mirror?

Downloading from the main Ubuntu archive is slow even when it's not release day, how can I get apt-get to automatically use a mirror that is close to me?
19
votes
7answers
44k views

Installing and testing CUDA in Ubuntu 14.04

I am uncertain about how to install CUDA in my system. looking around there are many tutorials about cuda on 12.04 LTS and a few on 13.04 and 13.10, but they all talk about acquiring a deb package ...
19
votes
7answers
145k views

How do I configure my static DNS in interfaces?

I am using Ubuntu 12.04. My /etc/network/interfaces file consists of: # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 iface ...
81
25
votes
4answers
75k views

Installing Java 7 Update 25 on 12.04 LTS?

How can I install Java on Ubuntu 12.04? I have: Java(TM) SE Runtime Environment (build 1.7.0_21-b11) Java HotSpot(TM) 64-Bit Server VM (build 23.21-b01, mixed mode)
77
votes
5answers
139k views

How do I install curl in php5?

I currently have PHP 5.3 installed with Apache in 10.04 Lucid. How can I add the PHP Curl libraries? Do I need to install any other dependencies for curl?
151
12
votes
2answers
114k views

“Unable to locate package” errors for all software

My apt-get doesn't install any programs. I try to install programs with apt-get install but always it shows same error: unable to locate package. For example I try to install the xbmc media center; ...
30
votes
10answers
98k views

How can I create a select menu in a shell script?

I'm creating a simple bash script and I want to create a select menu in it, like this: ./script echo "Choose your option:" 1) Option 1 2) Option 2 3) Option 3 4) Quit And according to ...
35
votes
5answers
145k views

Adding SSH Keys to Authorized_Keys

I have an Ubuntu server on Amazon EC2, that I use for development, and today I stupidly cleared everything out of the authorized_keys file for SSH. Luckily I have an SSH open, so I am still ...
24
votes
5answers
94k views

Permanently removing apache2

It seems a simple apt-get remove apache2 does not completely remove apache2 as I can still see it on one of the processes when running top. How does one remove apache2 completely on his ubuntu server? ...
131
60
votes
9answers
83k views

How to display network traffic in terminal

how to display the actual network traffic (wireless) in a terminal? Additionally: Is it possible to add this info to the chart of top?