All Questions
56,672
questions
-2
votes
1
answer
935
views
Why was kernel 4.9.77 released but not kernel 4.14.14? [duplicate]
Spectre protection (Retpoline) was released for Kernel 4.9.77 and 4.14.14 by the Linux Kernel team on January 15, 2018. The Ubuntu Kernel team only released kernel version 4.9.77 on January 17, 2018 ...
- 102k
-2
votes
1
answer
159
views
Can't start Windows 7 [closed]
I get this error message:
Windows Boot Manager
Windows failed to start. A recent hardware or software change might be the cause.
To fix the problem:
1. Insert your Windows ...
-2
votes
1
answer
1k
views
How to supply password through command while performing SSH login? [closed]
I want to perform SSH login to a machine by directly supplying password through the command line like the way we do for executing sudo commands as shown below:
echo mypass | sudo -S sh -c 'echo "...
- 322
-2
votes
5
answers
128k
views
"The following packages were automatically installed and are no longer required" when I try to install gnuplot
I want to install gnuplot on Ubuntu 12.04. However, it always fails with the following log:
Reading package lists... Done
Building dependency tree
Reading state information... Done
gnuplot is ...
- 143
-2
votes
2
answers
5k
views
Default audio device (typically built-in analog) does not show in Kubuntu 20.10 [closed]
After updating to Kubuntu 20.10 my built-in analog audio stopped showing in the KDE sound settings. Instead only the built-in digital output was showing.
The device is found by the kernel; sudo dmesg |...
- 2,989
-2
votes
4
answers
222
views
Check my find/exec command before running
Before I run this, I want to make sure it is correct.
I want to delete any .deb files.
find /home/andy/.local/share/Trash/expunged/ -type f -exec rm *.deb
This works on all files except .deb files.
#!...
- 3,127
-2
votes
2
answers
2k
views
line 56 syntax error: unexpected end of file
I have typed out the code for this mychoice.sh bash example and I keep getting the syntax error: unexpected end of file.
Am I missing something?
mychoice.sh
#!/bin/bash
E='echo -e';e='echo -en';...
-2
votes
1
answer
3k
views
IDEs for running C# programs in Ubuntu [closed]
Which is the better option for running C# programs in Ubuntu?
using Mono and compiling in the terminal
Microsoft Visual Studio Code
Microsoft .NET SDK.
- 19
-2
votes
1
answer
877
views
14.04 microphone noice buzzing sounds
My Microphone started acting up badly this morning has a loud buzz, it has got to be software it was working fine last night installed updates and shutdown last night and boom here we are, oh and i ...
-3
votes
2
answers
10k
views
Ubuntu 17.10 Cherry Trail problem with sound - funny and sad
I got a problem! Of course I do, doesnt I?
I got:
No sound working on my ubuntu.
No bluetooth working on my ubuntu.
No mmc working on my ubuntu.
Will I find here a proud knight thet will find a ...
-3
votes
1
answer
199
views
sir, problem about a host file [closed]
sir, over department created a host file to run over office program in windows, but they give us dell system having operating system ubuntu 16.4
now my question is that how this add file in ubuntu to ...
-3
votes
2
answers
16k
views
Whatsapp Help for Ubuntu 14.04! [duplicate]
Hey i have found a way to use Whatsapp on ubuntu using Pidgin!
But i don't understand everything on the site...
Can someone help me?
I have completed the pidgin installation and whatsapp plugin.
Now ...
- 11
-3
votes
2
answers
298
views
Terminal cannot install anything
I hav been using Ubuntu for quite sum time. yesterday i accidentally deleted the ubuntu partition (from windows) and again installed it.
im having the following problems
I tried 2 install Google ...
- 1
-3
votes
1
answer
2k
views
Will Ubuntu use my full RAM in dual boot? [duplicate]
When I run Ubuntu in dual boot will I still be able to use my full 4 GB RAM if I am not running Win 7 at the same time?
-4
votes
1
answer
283
views
Problem when upgrading ubuntu 14 to ubuntu 16 [closed]
While upgrading from Ubuntu 14 to Ubuntu 16 via do-release-upgrade, I ended up with the following relocation error:
apt-get: relocation error: /usr/lib/x86_64-linux-gnu/libapt-pkg.so.5.0: symbol ...
- 135
-4
votes
1
answer
776
views
Ubuntu 16.04 Installation with Windows 10
I have installed Windows 10 in My Dell Inspiron 620s.
When installation of the Ubuntu 16.04.1 64-bit is installed(first time) and when I restarted the system after the fresh installation of Ubuntu ...
- 133
-4
votes
1
answer
883
views
How to completely remove Ubuntu?
I installed Ubuntu using Wubi installer, but I couldnt boot to it. So I uninstalled it on the Control Panel. Then I tried the full installation wherein it boots to the Ubuntu environment. After ...
-6
votes
1
answer
8k
views
no such file or directory 'authorized_keys'
$ ssh-keygen -t rsa -P ""
Generating public/private rsa key pair.
Enter file in which to save the key (/home/dhruvhadoop1/.ssh/id_rsa): cat /home/hadoopuser/.ssh/id_rsa.pub >> /home/hadoopuser/ ....
-8
votes
1
answer
3k
views
How to install Ubuntu 17.10 32-bit [duplicate]
I want to install Ubuntu 17.10 32-bit on my ASUS laptop, but when I tried to download it I got these two screens. Note that these screenshots were taken on my Windows 10 desktop. Is there any other ...
- 213
-10
votes
1
answer
3k
views
How to sudo visudo without a password, remove all prompts for password [closed]
Websites tell me to use sudo when I have no password, usually tell me one of two things.
It is bad security
Or use 'sudo visudo' and the %admin ALL=(ALL) NOPASSWD: ALL line
I would like to not have ...
- 263
131
votes
4
answers
223k
views
Calculating the number of lines in a file?
How would I calculate and display the number of lines and words that are contained in a .sh file?
- 1,395
656
votes
8
answers
1.4m
views
How can I decode a base64 string from the command line?
I would like to write a bash script to decode a base64 string. For example I type decode QWxhZGRpbjpvcGVuIHNlc2FtZQ== and it prints Aladdin:open sesame and returns to the prompt.
So far I have tried ...
- 20.9k
589
votes
4
answers
1.2m
views
How do I check the version of Ubuntu I am running? [duplicate]
How can I check my current Ubuntu version through the command-line and GUI?
- 5,915
394
votes
7
answers
945k
views
How to disable strict host key checking in ssh?
I would like to disable strict host key checking in ssh for Ubuntu 11.04. How to do it?
- 82k
346
votes
6
answers
738k
views
322
votes
8
answers
354k
views
How do I zip up a folder but exclude the .git subfolder
I'm trying to create a zip file from a folder and I'd like to exclude the .git sub-folder from the resulting zip file.
I have gone to the parent folder of the one I want to zip (called bitvolution) ...
- 5,017
310
votes
4
answers
158k
views
How do I diff the output of two commands?
I had imagined the simplest way to compare the contents of two similar directories would be something like
diff `ls old` `ls new`
But I see why this doesn't work; diff is being handed a big long ...
- 3,997
301
votes
7
answers
441k
views
ssh: automatically accept keys
I've written this small utility script:
for h in $SERVER_LIST; do ssh $h "uptime"; done
When a new server is added to $SERVER_LIST, the script is stopped with:
The authenticity of host 'blah.blah....
- 12.5k
297
votes
7
answers
601k
views
How do I find the kernel version, Ubuntu release and disk partition information from the terminal?
Which commands will give me information about following using Terminal?
Kernel Version
Distribution version no.
All partition size of the HDD
- 19.1k
292
votes
8
answers
686k
views
mv: Directory not empty
I want to move content of a directory within another directory with the same folders.
Here's an example:
I have ./backup which has the directories base and test. Now, I want to move these directories ...
- 2,923
276
votes
10
answers
1.1m
views
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 ...
- 2,955
257
votes
14
answers
487k
views
How do I copy files that need root access with scp?
I have an Ubuntu server to which I am connecting using SSH.
I need to upload files from my machine into /var/www/ on the server, the files in /var/www/ are owned by root.
Using PuTTY, after I log in,...
- 2,705
252
votes
4
answers
319k
views
How to resize an image through the terminal? [duplicate]
I have Ubuntu 10.04. I have converted image through terminal using the following command:
convert myfigure.png myfigure.jpg
But I want to resize the height and width of the converted image. Is there ...
- 2,661
240
votes
4
answers
189k
views
How to create an animated GIF from MP4 video via command line?
I want make an animated .gif from an .mp4 video. I would prefer to do it from the command line, so please only list command line tools.
- 84.3k
239
votes
3
answers
596k
views
How do I compress a directory?
I'm trying to compress a directory and ftp it to a windows ftp.
I have tried every tar command I can find to compress a directory. It appears to be ok. Then I transfer it and view it's contents ...
- 2,583
229
votes
2
answers
788k
views
What is the best way to uninstall nginx
I'm trying to add new module to nginx with naxsi, but I should reinstall nginx. What is the better way of removing nginx?
- 2,403
225
votes
2
answers
690k
views
How to simply convert video files (i.e.: MKV to MP4)? [duplicate]
I simply want to convert files, any format to any format (at the moment, I need to convert MKV to MP4-h264), without losing quality. I don't want to resize (scale) the video, I don't want to change ...
- 2,351
212
votes
8
answers
408k
views
Is there a way to create multiple directories at once with mkdir?
If I wanted to create multiple directories (on the same level) and then feed it a comma seperated list of directory names (or something to that effect)?
- 2,295
206
votes
6
answers
422k
views
How to open a file manager of the current directory in the terminal?
When I work in terminal, sometimes I want to open the current directory in a GUI file manager.
And then to click the items in the window to run the application. How can I do this?
user8260
206
votes
7
answers
583k
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?
- 2,193
204
votes
3
answers
311k
views
How to use Undo functionality in Nano?
I use the commmand line text editor nano. How do I undo an action while editing text?
For example:
I typed some text and then changed my mind. Now I want to return to previous state. How?
- 2,143
203
votes
6
answers
273k
views
How do I find the version of bash I am running?
(learning bash)
I was trying to check the bash version so I typed /bin/bash -v.
That outputted a whole lot of text to the screen (contents of .bashrc, and other files sourced from it).
Could I have ...
- 3,555
185
votes
1
answer
310k
views
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?
- 6,789
181
votes
3
answers
252k
views
How do I install dig?
How do I install dig (the DNS lookup tool)? I can't figure out what the package name is.
- 6,245
179
votes
9
answers
512k
views
How to find zombie process?
System information as of Fri Mar 9 19:40:01 KST 2012
System load: 0.59 Processes: 167
Usage of /home: 23.0% of 11.00GB Users logged in: 1
Swap usage: 0% ...
- 2,547
177
votes
7
answers
255k
views
.bashrc not executed when opening new terminal
The code in .bashrc does not execute when I open a new terminal window in Ubuntu 12.04.
I noticed this when creating a .bash_aliases file. The aliases did not show up when I opened a new terminal. ...
- 2,905
174
votes
3
answers
194k
views
What is the difference between "systemctl start" and "systemctl enable"?
I installed MariaDB server to my machine. While setting up, I was met with the problem of whether I should have it enabled all the time, as the documentation I follow suggests with these steps:
sudo ...
- 1,869
170
votes
10
answers
136k
views
How to easily start a webserver in any folder?
I'm looking for a relatively painless way to launch a web server with document root in any folder I specify (or better yet, where I'm launching).
I often try out new things like JS frameworks or so ...
- 2,232
164
votes
3
answers
246k
views
Does ssh key need to be named id_rsa?
I have come across this problem a couple of times when creating build servers with keyed authentication.
I was wondering if anyone else has experience this. I have a couple of keys for my current ...
- 34.2k
160
votes
4
answers
135k
views
What is the difference between `ssh -Y` (trusted X11 forwarding) and `ssh -X` (untrusted X11 forwarding)?
What is the difference between ssh -Y (trusted X11 forwarding) and ssh -X (untrusted X11 forwarding)? As far as I have understood it, it has something to do with security, but I did not grasp the ...
- 8,348