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1500 questions
738
votes
16 answers
How to check Internet Speed via Terminal?
Instead of going to sites like speedtest.net, I want to check my current Internet speed from the terminal on Ubuntu. How can I do it?
kernel_panic
- 11,732
728
votes
82 answers
What Application Indicators are available?
This question exists because it has historical significance, but it is not considered a good, on-topic question for this site, so please do not use it as evidence that you can ask similar questions here. While you are encouraged to help maintain…
user8592
- 828
727
votes
21 answers
710
votes
7 answers
How to make 'python' program command execute Python 3?
The python program command executes Python 2. Python 3 can be executed using the python3 command. How can Python 3 be executed using the python command?
Giri
- 7,243
- 3
- 13
- 9
703
votes
9 answers
What does "sudo apt-get update" do?
I am wondering what sudo apt-get update does?
What does it update?
Elysium
- 11,012
686
votes
14 answers
How do I install a .tar.gz (or .tar.bz2) file?
I have downloaded tar.gz files. But I don't know how to install it. How do I install this kind of file?
Silambarasan
- 7,925
668
votes
14 answers
How do I resolve unmet dependencies after adding a PPA?
Occasionally, when I'm installing stuff, I get an error like the following:
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages…
jrg
- 60,611
653
votes
8 answers
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 a simple bash file containing python -m base64 -d…
lofidevops
- 20,924
647
votes
9 answers
How do I check which shell I am using?
I read that terminal is nothing but shell, and Unix provides different flavors of shells:
Bourne shell (sh)
C shell (csh)
TC shell (tcsh)
Korn shell (ksh)
Bourne Again shell (bash)
Questions:
When I open a terminal window, which shell is opened…
GMudide
- 6,645
- 3
- 14
- 7
645
votes
8 answers
How do I add environment variables?
I'm running Ubuntu 11.04. I use the terminal to start a bash session, and I want to add an environment variable:
$r@hajt:~$ env THEVAR=/example
But it's not working. It shows all the variables with THEVAR being the last one, but another call to env…
huff
- 6,550
644
votes
24 answers
How do I free up more space in /boot?
My /boot partition is nearly full and I get a warning every time I reboot my system. I already deleted old kernel packages (linux-headers...), actually I did that to install a newer kernel version that came with the automatic updates.
After…
user6722
- 6,715
642
votes
28 answers
How can I record my screen?
How can I record my screen on Ubuntu?
The app I'm looking for has ideally all of these features:
Can record in a format that can be played back easily on any platform and/or accepted by YouTube or another popular video site
Can record just a…
Riccardo Murri
- 16,507
642
votes
8 answers
How do I set up a Cron job?
I want to schedule a task to run on a regular basis and have heard that Cron is the way to do this.
How do I add Cron jobs in Ubuntu?
Gabriel Solomon
- 7,015
637
votes
8 answers
How to create a soft or symbolic link?
I am installing p4v in /opt, but /usr/bin is on my path. Is it possible to create a soft or symbolic link for p4v from /opt to /usr/bin, so I can just type "p4v" since /usr/bin is in my path?
coffee
- 6,593
634
votes
2 answers
How to redirect stderr to a file
While using nohup to put a command to run in background some of content appear in terminal.
cp: error reading ‘/mnt/tt/file.txt’: Input/output error
cp: failed to extend ‘/mnt/tt/file.txt’: Input/output error
I want to save that content to a file.
André M. Faria
- 7,204