Most Popular
1500 questions
455
votes
35 answers
How can I deactivate Bluetooth on system startup?
How can I deactivate Bluetooth on system startup?
Floqqi
- 4,567
455
votes
10 answers
Convert a directory of JPEG files to a single PDF document
I have many JPEG files in a directory, and I want to convert them to PDF and concatenate them together to make a single document.
How can this be done?
I would prefer using the command line, as this process will be faster.
lovespeed
- 4,701
453
votes
22 answers
Trouble downloading packages list due to a "Hash sum mismatch" error
When I check for updates, I get a "Failed To Download Repository Information" error.
This is what comes up under details:
W: Failed to fetch gzip:/var/lib/apt/lists/partial/us.archive.ubuntu.com_ubuntu_dists_natty_main_source_Sources Hash Sum…
Rob
- 12,940
453
votes
12 answers
How do I upgrade to a newer version of Ubuntu?
What are the different ways I can use to upgrade Ubuntu from one release to another?
rakshith
- 1,239
451
votes
9 answers
How do I install Python 3.6 using apt-get?
I've tried the normal way, sudo apt-get install python3.6, but... well... that didn't work.
So, how would I go about it? (I'd preferably not build it on my own)
I'm using Ubuntu 16.04.
Olian04
- 4,653
446
votes
6 answers
How to downgrade a package via apt-get?
How can I downgrade a package to an older version via apt-get?
Other tools are also acceptable but apt-get is preferred.
user61928
443
votes
15 answers
How do I start applications automatically on login?
How can I make an application automatically start when I have logged in?
Lincity
- 25,749
439
votes
15 answers
How do I install fonts?
How do I install fonts on Ubuntu Linux? I need them to be available in gimp.
myusuf3
- 35,659
435
votes
14 answers
How can I repair grub? (How to get Ubuntu back after installing Windows?)
I installed Windows 7, which ate Ubuntu's boot file. When starting up the computer, it now goes straight to Windows, without giving me the option of booting Ubuntu.
How can I get Ubuntu back?
Salahuddin
- 4,911
434
votes
10 answers
How to enable hibernation?
In Ubuntu 12.04 and newer, hibernation has been disabled by default in policykit. How can I enable this back?
Dima
- 9,955
434
votes
8 answers
How to download an MP3 track from a YouTube video
There are several Q&A threads that explain how to download youtube videos using the terminal.
However, I would also like to learn how to extract the video's soundtracks as MP3 files--also using only the terminal.
Answers briefly explaining how to…
siraj
- 5,407
428
votes
12 answers
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?
Oli
- 299,380
427
votes
11 answers
How can I view the contents of tar.gz file without extracting from the command-line?
I want to see the contents (list of files and folders) of an archive, for example a tar.gz file without extracting it.
Are there any methods for doing that?
Avinash Raj
- 80,446
426
votes
7 answers
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?
karthick87
- 84,513
425
votes
4 answers
What is the difference between #!/bin/sh and #!/bin/bash?
if I write,
#!/bin/bash
echo "foo"
or
#!/bin/sh
echo "foo"
both yields same. I have seen some scripts starting with #!/bin/sh or #!/bin/bash. Is there any difference between them?
Rahul Virpara
- 11,860