Guru - Badge - Ask Ubuntu

Guru

Accepted answer and score of 40 or more. This badge can be awarded multiple times.

Awarded 3309 times.

MySQL: An error occurred during the signature verification

Awarded Jun 7 at 4:40

matigo

19.5k6 gold badges37 silver badges63 bronze badges

How can I stop unattended-upgrades from rebooting the machine?

Awarded Jun 6 at 22:10

ricciocri

1,30311 silver badges10 bronze badges

I accidentally removed myself from sudoers, how can I fix this?

Awarded Jun 1 at 19:57

MestreLion

19.6k12 gold badges87 silver badges107 bronze badges

What is the difference between tmpfs and ramfs

Awarded May 31 at 17:21

Mitch♦

106k24 gold badges209 silver badges266 bronze badges

Is there any software for visual display of disk space?

Awarded May 31 at 11:17

terdon on strike

97.6k15 gold badges196 silver badges292 bronze badges

Can't make new dir with mkdir

Awarded May 29 at 14:51

sudodus

44.7k5 gold badges86 silver badges149 bronze badges

Turn off calendar notifications - Ubuntu 20.04

Awarded May 19 at 13:27

Plasma

1,0039 silver badges13 bronze badges

How to remove an apt repository that I added myself?

Awarded May 17 at 18:42

micheal65536

7886 silver badges13 bronze badges

Modifying the color of grep

Awarded May 15 at 2:27

M. Becerra

3,3195 gold badges22 silver badges39 bronze badges

In KDE Plasma, how can I switch between virtual desktops using Meta + Tab?

Awarded May 10 at 23:12

Mark Kirby

18.2k19 gold badges77 silver badges113 bronze badges

Numeric keypad not working

Awarded May 7 at 11:20

Javier Rivera

34.9k11 gold badges87 silver badges110 bronze badges

How do I set focus follows mouse in Ubuntu 17.10 and later with GNOME 3?

Awarded May 3 at 10:20

pomsky

66.7k20 gold badges232 silver badges243 bronze badges

What is the use of systemd-journal-flush.service?

Awarded May 1 at 17:49

abu_bua

10.4k10 gold badges42 silver badges62 bronze badges

How do I turn off minimize-on-click option for Ubuntu dock?

Awarded Apr 26 at 22:40

pomsky

66.7k20 gold badges232 silver badges243 bronze badges

NordVPN local network addresses not reachable when connected

Awarded Apr 22 at 23:25

kmassner

4165 silver badges3 bronze badges

Fast switch input source via CapsLock button in Ubuntu 17.10

Awarded Apr 22 at 12:49

neizod

85810 silver badges13 bronze badges

zerofree on ubuntu 18.04

Awarded Apr 21 at 11:20

Emmanuel N K

5661 gold badge6 silver badges8 bronze badges

Zip an archive without including parent directory

Awarded Apr 21 at 9:57

jspaetzel

5605 silver badges5 bronze badges

How to determine the size of a package while using apt prior to downloading?

Awarded Apr 20 at 11:42

enzotib

91.5k11 gold badges164 silver badges177 bronze badges

What editor can I use as a simple vi/vim alternative?

Awarded Apr 18 at 1:28

Andrea Lazzarotto

7,7853 gold badges37 silver badges56 bronze badges

What software should I install for opening .stl files?

Awarded Apr 13 at 20:28

byteborg

1,49512 silver badges8 bronze badges

What are the differences between netcat-traditional and netcat-openbsd?

Awarded Apr 13 at 16:01

Malte Skoruppa

12.7k5 gold badges56 silver badges65 bronze badges

How do I delete all packages which match a certain pattern?

Awarded Apr 13 at 12:58

Flimm

39.8k20 gold badges93 silver badges151 bronze badges

Is there any guarantee that software from Launchpad PPAs is free from viruses and backdoor threats?

Awarded Apr 8 at 7:35

Scott Ritchie

4,30125 silver badges33 bronze badges

Copy files and directories without files content

Awarded Apr 5 at 2:55

Sergiy Kolodyazhnyy

102k19 gold badges271 silver badges483 bronze badges

Permission denied when running Docker after installing it as a Snap

Awarded Apr 4 at 13:51

Mike Coleman

8767 silver badges2 bronze badges

Fill & Sign PDF on Ubuntu

Awarded Apr 4 at 8:09

Rinzwind

292k41 gold badges565 silver badges706 bronze badges

Get absolute path of files using 'find' command

Awarded Apr 3 at 18:05

dessert

39k12 gold badges115 silver badges163 bronze badges

What is "packagekitd" and how do I make the Software Updater stop waiting for it?

Awarded Apr 3 at 13:12

DocWeird

7207 silver badges7 bronze badges

smbclient getting NT_STATUS_LOGON_FAILURE connecting to Windows box

Awarded Apr 3 at 3:31

Linztm

6436 silver badges7 bronze badges

Can I delete /var/log files due to low root space?

Awarded Mar 30 at 20:20

Eliah Kagan

116k54 gold badges314 silver badges489 bronze badges

Difference between let, expr and $[]

Awarded Mar 29 at 16:27

Sergiy Kolodyazhnyy

102k19 gold badges271 silver badges483 bronze badges

Can I boot memtest86+ if I'm using UEFI?

Awarded Mar 25 at 1:41

sudodus

44.7k5 gold badges86 silver badges149 bronze badges

How can I solve "Be aware that removing the lock file is not a solution and may break your system"?

Awarded Mar 24 at 16:11

Archisman Panigrahi

24k17 gold badges88 silver badges177 bronze badges

list existing X display names?

Awarded Mar 24 at 15:48

Oli♦

288k117 gold badges677 silver badges832 bronze badges

What do the `--disabled-login` and `--gecos` options of `adduser` command stand for?

Awarded Mar 22 at 8:50

Radu Rădeanu

166k47 gold badges326 silver badges398 bronze badges

Reset MS Teams completely

Awarded Mar 14 at 7:48

seanlano

2,8613 gold badges26 silver badges43 bronze badges

Installing python: who is deadsnakes and why should I trust them?

Awarded Mar 13 at 19:52

Archisman Panigrahi

24k17 gold badges88 silver badges177 bronze badges

Why do I still see an Apache site on Nginx?

Awarded Mar 13 at 8:03

Oli♦

288k117 gold badges677 silver badges832 bronze badges

Cannot install docker-desktop on ubuntu 22.04

Awarded Mar 10 at 10:35

Nafiu Lawal

7107 silver badges10 bronze badges

Wine 2.0 says it supports Office 2013. How do I actually install it?

Awarded Mar 9 at 12:08

Philippe

1,07811 silver badges25 bronze badges

qt5-default not in Ubuntu 21.04

Awarded Mar 6 at 23:56

N0rbert

96.1k33 gold badges233 silver badges418 bronze badges

ubuntu-drivers "UnboundLocalError: local variable 'version' referenced before assignment" when installing nvidia drivers

Awarded Mar 2 at 23:31

Yaseen

7663 silver badges4 bronze badges

How to disable notification from network-manager

Awarded Mar 2 at 20:57

jokerdino♦

41k24 gold badges132 silver badges201 bronze badges

Headset microphone not working on Ubuntu 20.04

Awarded Mar 2 at 9:20

jmkite

5745 silver badges2 bronze badges

Check if partition is encrypted

Awarded Mar 1 at 11:01

enzotib

91.5k11 gold badges164 silver badges177 bronze badges

GDM3 does not start in Ubuntu 18.04

Awarded Feb 26 at 17:17

Gustavo Gstre

4165 silver badges5 bronze badges

htop showing duplicate applications with very odd bizarre results upwards of 20,30,40 or more, see screen grab

Awarded Feb 24 at 3:27

darthlukan

6816 silver badges6 bronze badges

Disable second, non-existent screen from command line

Awarded Feb 22 at 11:17

Radu Rădeanu

166k47 gold badges326 silver badges398 bronze badges

Are there alternative repositories to ports.ubuntu.com for ARM?

Awarded Feb 21 at 23:01

Malte Skoruppa

12.7k5 gold badges56 silver badges65 bronze badges

Where is WSL located on my computer?

Awarded Feb 16 at 18:20

NotTheDr01ds

14.2k5 gold badges47 silver badges74 bronze badges

Merge all pdf files from one folder

Awarded Feb 15 at 16:51

jbrock

3,19922 silver badges33 bronze badges

dconf change a string key

Awarded Feb 4 at 15:51

steeldriver

130k21 gold badges230 silver badges318 bronze badges

Google Chrome freeze uploading a file

Awarded Feb 4 at 11:41

Lin Sun

7064 silver badges4 bronze badges

Can Mouse Wheel Scrolling be enabled in Byobu

Awarded Jan 31 at 9:49

Dustin Kirkland

14.4k3 gold badges69 silver badges93 bronze badges

Upgrade Ubuntu in WSL2 from 20.04 to 22.04

Awarded Jan 25 at 23:10

NotTheDr01ds

14.2k5 gold badges47 silver badges74 bronze badges

iTerm 2 equivalent

Awarded Jan 23 at 19:19

sagarchalise

23.5k12 gold badges71 silver badges85 bronze badges

How do I solve "Unable to fetch some archives, maybe run apt-get update or try with --fix-missing" error?

Awarded Jan 17 at 13:00

kiri

27.4k16 gold badges80 silver badges117 bronze badges

Unmet dependencies for python 3.10

Awarded Jan 14 at 20:50

iyrin

1,35014 silver badges21 bronze badges

How to redirect output to screen as well as a file?

Awarded Jan 11 at 23:34

Lekensteyn

171k64 gold badges311 silver badges401 bronze badges

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