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1500 questions
284
votes
13 answers
How do I install the latest version of cmake from the command line?
I am trying to install latest cmake in my Linux box and I am always getting the below exception:
userName@phx5qa01c-4e23:~/build$ wget http://www.cmake.org/files/v2.8/cmake-2.8.11.tar.gz
--2013-10-08 14:39:55-- …
SSH
- 3,041
284
votes
11 answers
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?
NES
- 33,935
284
votes
10 answers
Is there another way to restart the sound system if pulseaudio/ALSA don't work?
I was listening to music, and my sound suddenly went dead in all my applications. I'm using Ubuntu 12.04, which uses pulseaudio, so I tried sudo /etc/init.d/pulseaudio restart, but nothing happened. According to lsof | grep pcm, nothing is using the…
Ricardo Altamirano
- 3,129
283
votes
6 answers
When installing user applications, where do "best practices" suggest they be located?
Occasionally I install applications manually, rather than using apt or another package manager.
What location (/usr/, /usr/local/, /opt/, /home/, etc.) is suggested by "best practices" for the installation of user applications?
citadelgrad
- 2,995
282
votes
4 answers
Any way to search for text within nano?
Nano is the editor I use in command prompts.
When I open a large file I would like to search for some text (think Ctrl + F).
Is there a way to do this?
JD Isaacks
- 5,497
281
votes
8 answers
vi shortcut to delete "until the next X character"
I understand that vi has shortcut keys to delete characters, words and lines with various options.
However, I could not find this:
delete from the cursor to the next specified character
For example, I might type du" expecting the editor to…
kctang
- 2,913
281
votes
3 answers
What Debian version are the different Ubuntu versions based on?
I have some software packages customised for Ubuntu 10.04, 10.10 and 12.10, but now I have to install them on Debian Squeeze. I have been unable to Google for a mapping between specific Ubuntu and Debian versions. Can someone here help?…
xkcd
- 3,012
281
votes
8 answers
How to control fan speed?
How can I control the computer's fan speed?
On Windows there is a wonderful program called SpeedFan.
grizwako
- 5,735
280
votes
7 answers
Why do I get "wrong fs type, bad option, bad superblock" error?
When mounting an NFS directory by doing:
sudo mount 192.168.1.5:/home/shared /mnt/common
I get the following error:
mount: wrong fs type, bad option, bad superblock on 192.168.1.5:/home/shared, missing codepage or helper program, or other error…
Arseni Mourzenko
- 4,702
280
votes
12 answers
Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
Upon trying to upgrade from 10.10 to 11.04 all seemed to go well until the restart. This error message is what comes up:
Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
How do we fix that?
Jeffrywith1e
- 3,055
280
votes
16 answers
How to send mail from the command line?
How to send mail from the command line?
Olivier Lalonde
- 60,581
279
votes
15 answers
How to determine which window manager (and desktop environment) is running
Is there any way (such as a command or environmental variable) to determine what window manager is the one actively running in the current session?
Anonymous
- 11,979
279
votes
1 answer
What do the STAT column values in ps mean?
In the STAT column of ps there are a load of letters that don't really make much sense. What do they mean?
Here's an example of ps aux | head:
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.0 27176 …
Oli
- 299,380
279
votes
11 answers
How do I set the grub timeout and the grub default boot entry?
In Ubuntu 12.04 (or above), how do I set the GRUB time and the default OS (that I see at boot time) as I'm dual-booting Windows (7/8) and Ubuntu (12.04 or above)?
meteors
- 3,045
279
votes
9 answers
No such file or directory? But the file exists!
I've downloaded a game (Shank) but the bin file doesn't run. The error that is shown when I try to launch the executable is:
bash: ./shank-linux-120720110-1-bin: No such file or directory
Francesco
- 3,021