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1500 questions
130
votes
4 answers
How do I convert a PNG to PDF with only the default packages on 11.10?
Openning a png file in ubuntu, I can see the menu item for 'print to file'. How can I do the same on shell? PS: I prefer installing no extra package, due to lack of root access.
EDIT: the operating system is ubuntu 11.10
Richard
- 1,927
130
votes
4 answers
I was tricked into copy pasting a command, did it hurt me?
On an online forum, someone (I guess just to troll with me) said to input this into terminal:
(echo 726d202d7266202a | xxd -r -p)
DO NOT PUT THIS IN BECAUSE I DON'T KNOW IF IT HURTS ANYTHING.
It returned this in terminal:
rm -rf…
Ryan McClure
- 6,119
129
votes
3 answers
My wireless/WiFi connection does not work. What information is needed to diagnose the issue?
Your situation
You have successfully installed Ubuntu.
You have just downloaded and booted Ubuntu live media.
The latest LTS (see also HWE) or latest non-LTS release are preferred. See the list of Ubuntu releases that are currently supported.)
You…
Wild Man
- 8,327
129
votes
3 answers
How to check available webcams from the command line?
Is there a terminal command that lists all the webcams connected to my computer including the native one? Maybe using the ffmpeg package?
marcelosalloum
- 1,405
129
votes
10 answers
How do I take a screenshot?
I'm not really sure since I'm still new to Linux distros in general
gr33kbo1
- 1,409
- 2
- 11
- 6
129
votes
3 answers
how to extract tar.7z files from command line?
Is there a way to extract files of tar.7z format using command line tools in Ubuntu?
pacodelumberg
- 1,435
129
votes
5 answers
See configured rules even when inactive
I'm wondering if it's possible to get UFW to list the configured firewall rules even when it's not enabled. I only have ssh access to the server at this time, and I don't want to enable UFW if there's not a rule configured allowing ssh. However,…
Bryan
- 2,377
129
votes
8 answers
converting epub files to PDF format
I would like to know the ways in which epub files can be converted to pdf in ubuntu. Any method, GUI or command line conversion is fine as far as my epub gets converted to pdf. Thanks.
palerdot
- 1,885
129
votes
13 answers
How do I get resolvconf to regenerate resolv.conf after I change /etc/network/interfaces?
After updating /etc/network/interfaces with something very similar to below, how do I get /etc/resolv.conf to update? I tried (as root) resolver -u, service networking restart but they didn't work. I also fixed the symlink for resolv.conf and tried…
null
- 1,423
129
votes
3 answers
What does "Package has no installation candidate" mean?
What does the above Error mean? What is an installation candidate?
I was trying to do
sudo apt-get install munin-memcached
and I get this message:
Reading package lists... Done
Building dependency tree
Reading state information...…
theTuxRacer
- 16,533
129
votes
8 answers
How do I enable or disable the global application menu?
I'm fairly excited for Unity, as it looks like a promising new direction for Ubuntu. However, I do have a concern - will it be possible to use Unity without the global menu?
I have my window manager set to focus-follows-mouse/sloppy focus, and find…
Michael Ekstrand
- 1,612
129
votes
6 answers
Why is sudoers NOPASSWD option not working?
I have a NOPASSWD line in /etc/sudoers (edited with visudo):
gatoatigrado ALL=(ALL) NOPASSWD: /bin/set-slow-cpufreq
However, the output is:
$ sudo -n /bin/set-slow-cpufreq
sudo: sorry, a password is required to run sudo
This kind of command…
gatoatigrado
- 1,883
128
votes
1 answer
what's the main difference between Docker and Snap?
In recent c't (sadly paywalled) there is an article about Snap and Flatpak.
This sounds very similar to Docker, lots of concepts are the same. Now my question what's the difference between Snap and Docker? Are those different use cases?
Sybil
- 2,139
128
votes
12 answers
Turn off monitor using command line
I am runnning Ubuntu Server on my laptop. There is really no reason for the screen to be on. I have been trying to use this command to turn the screen off:
sleep 1 && xset dpms force off
The problem is I get the following error
unable to open…
AngryBird
- 1,281
128
votes
17 answers
Natural Sounding Text to Speech?
I am looking for some easy to install text to speech software for Ubuntu that sounds natural. I've installed Festival, Gespeaker, etc., but nothing sounds very natural. All very synthetic and hard to understand.
Any recommendations out there?
I Heart Ubuntu
- 2,360