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1500 questions
276
votes
10 answers
How to list all symbolic links in a directory
I have a symbolic link in my /var/www/ directory that links to WordPress. When I run the command ls -la from the /var/www/ directory the link to WordPress doesn't show up. Is there a way to list all of the symbolic links that are in a directory?

Isaac
- 2,955
- 3
- 14
- 13
276
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
- 2,925
275
votes
16 answers
How to send mail from the command line?
How to send mail from the command line?

Olivier Lalonde
- 58,691
274
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
- 2,843
274
votes
5 answers
E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable)
I'm trying to run this command in the terminal:
sudo apt install software-properties-common
This is the error message I get:
E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable)
E: Unable to acquire the…

GoodNite
- 2,741
273
votes
12 answers
How can I remove Amazon search results from the dash or disable the feature?
How can I disable Amazon search results in the Dash?

Jorge Castro
- 71,754
273
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
- 2,961
271
votes
9 answers
How to get the MD5 hash of a string directly in the terminal?
How do I get the MD5 hash of a string directly from the terminal?
For example, I want the string abcdefg hashed. Currently the md5sum command only accepts a filename as input. I want to simply enter the following line and everything be done…

2hamed
- 3,313
271
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
- 4,582
- 5
- 20
- 34
271
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
- 5,635
269
votes
4 answers
How to check RAM size?
What is the command to find the RAM size in computer? I want to see result in MB.

KonradDos
- 2,971
269
votes
6 answers
Where are sudo's insults stored?
For those who like humour, sudo can be configured to print a random more or less insulting or funny phrase instead of the neutral Sorry, try again. by adding the line below to /etc/sudoers (using the command sudo visudo, not editing…

Byte Commander
- 107,489
269
votes
11 answers
How do I start/stop mysql server?
I tried to find in some articles describing how to correctly start & stop mysql server.
I found this link: How to start/stop MySql server on Ubuntu 8.04 | Abhi's Blogging World
I ran this command:
/etc/init.d/mysql start
but I see this error…

user471011
- 3,559
269
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
- 5,287
268
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
- 11,699