Most Popular
1500 questions
183
votes
13 answers
Opening the file browser from terminal
What's the command to open the file browser? I want it so that I can assign a keyboard shortcut to open a specific folder.
Jon Doe
- 11,447
183
votes
3 answers
How to remove a repository?
Please let me know how to remove certain repositories in Ubuntu 11.04. I am getting the following errors while updating.
sudo apt-get update
Err http://ppa.launchpad.net natty/main Sources
404 Not Found
Err…
samarasa
- 4,711
183
votes
10 answers
Running programs in the background from terminal
How do I run a program in the background of a shell, with the ability to close the shell while leaving the program running?
Lets say my UI is having problems or for some reason, I need to boot up a program from the terminal window, say,…
OVERTONE
- 2,307
182
votes
4 answers
How can I downgrade from PHP 7 to PHP 5.6 on Ubuntu 16.04?
I am trying to revert my PHP version to 5.6 from 7 and though I removed PHP 7 and then installed PHP 5.6 I still seem to be running version 7.
Is there a simple method for moving through PHP versions where apache, phpMyAdmin and co are configured…
dibs
- 3,489
182
votes
8 answers
How do I set environment variables?
I'm trying to set up Apache Tomcat on my pc, and it wants me to set up an environment variable for CATALINA_HOME. Does any know how to do this?
jumpnett
- 5,975
182
votes
5 answers
How to see Login history?
Is it possible to see the login history, i mean to see if someone has used the computer in my absence and when he used it .
if it is possible, where can i get the log ?
if not, is there a program that logs all the logins and their time ?
Dzero
- 3,178
182
votes
9 answers
How to solve "Pending update of "firefox" snap. Close the app to avoid disruptions" error?
Recently, this warning appears when open Firefox:
Pending update of "firefox" snap
Close the app to avoid disruptions
What does it mean? And what do I have to do? Is this a bug?
Emilio
- 2,061
182
votes
7 answers
apt-key deprecation warning when updating system: "Key is stored in legacy trusted.gpg keyring"
Recently I've noticed some issues when running apt where the system will warn me of a keyring deprecation:
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
8 packages can be upgraded. Run 'apt list…
matigo
- 22,138
- 7
- 45
- 75
182
votes
6 answers
"debconf: DbDriver "config": config.dat is locked by another process: Resource temporarily unavailable" while installing packages
I'm trying to install the flashybrid but when I enter the apt-get install flashybrid command, I get this error:
root@user-desktop:/home/user# apt-get install flashybrid
Reading package lists... Done
Building dependency tree
Reading state…
Dimitris7
- 1,821
181
votes
6 answers
Switch between multiple java versions
While installing Android Studio on Ubuntu 14.04 I get the message that my Java version (javac 1.7.0_79) is causing problems. I found a solution of how to install a newer Oracle version of Java:
sudo apt-add-repository ppa:webupd8team/java
sudo…
mcExchange
- 3,088
181
votes
11 answers
Enter SSH passphrase once
Before upgrade
When I was running git clone git@... (using ssh) once per computer restart a window dialog appeared containing a textbox for inserting my SSH passphrase and confirmed with OK. Then the passphrase was no longer required until the next…
Ionică Bizău
- 9,503
181
votes
15 answers
Chrome asks for password to unlock keyring on startup
In Google Chrome, when I go to a login page, a window pops up asking to "Enter password for keyring 'default' to unlock". In most cases, whether I click Cancel or enter my password, the login form gets auto filled anyway.
How do I get rid of the…
DisgruntledGoat
- 3,447
181
votes
6 answers
Should I always restart the system when I see "System restart required"?
These two nice SE posts (1, 2) comment on restarting one's ubuntu machine but they leave me with a few questions:
How do you actually do the restart (I'm a beginner and using 12.04.1 LTS)?
Should I always restart the system when prompted to?
Does…
tim peterson
- 2,285
181
votes
7 answers
Why am I getting "Command 'deb' not found"?
I have come across several installation instructions that include the command deb. But it appears that this command is not available on my installation.
Where can I get this command? Is there a work-around?
Kevin Burton
- 1,959
181
votes
17 answers
How to update kernel to the latest mainline version without any Distro-upgrade?
Currently I'm running Linux-3.0 and I want to update it to Linux-3.3.1 the latest stable kernel release as mentioned at http://www.kernel.org. Can I update to 3.3.1 in Ubuntu without any risk of crashes? I'm updating my kernel regularly as provided…
Suchith JN
- 2,161