How to open cmd when installing Windows 11

Press Shift + F10

How to install .deb files on Ubuntu?

https://linuxconfig.org/install-deb-file-on-ubuntu-22-04-jammy-jellyfish-linux

$ sudo dpkg -i example.deb

If the package requires dependencies that aren’t already on your system, you will see 

this error in the terminal:

dpkg: error processing package 

Don’t fret, because we can install the required dependencies with a single command, 

assuming that they are available in Ubuntu’s package repository. Just run this command 

to install the dependencies: 

$ sudo apt install -f

speedtest error on ubuntu terminal

When I ran 

$ speedtest

I got 

Retrieving speedtest.net configuration...

Cannot retrieve speedtest configuration

ERROR: HTTP Error 403: Forbidden

Solution:

https://ubuntu-mate.community/t/speedtest-cli-error/25722

ricmarques

15 Aug

Hi, @fixit7 .

I've never ran speedtest-cli but, after a web search, I've found the following Reddit post (in the subreddit "r/Linux4noobs 10") that was posted 23 days ago:

reddit

r/linux4noobs - Speedtest-cli only works with --secure 291

2 votes and 1 comment so far on Reddit

In that Reddit post, the original poster ("u/CryPTuuNe 3") wrote the following:

"(...) I just setup Ubuntu on my new PC. For testing purposes I installed the speedtest-cli and with the command Speedtest everything worked fine. I don't know what I did then, but now I am getting an http error 403 forbidden. But when doing speedtest --secure everything works fine again. (...)"

According to the "speedtest-cli" manpage - Ubuntu Manpage: speedtest-cli - Command line interface for testing internet bandwidth using speedtest.net 81 - the "--secure" switch has the following meaning:

--secure
Use HTTPS instead of HTTP when communicating with speedtest.net 28 operated servers

I hope this helps.

How to split window and open terminal in vim?

 https://dev.to/mr_destructive/vim-terminal-integration-4pfp

^w v

To split window vertically. (the same file is opened in the new split window.)

^w l

To go to the newly split windows on the right

:term

To open a terminal. (The window on the right split horizontally, and the terminal window is on the top.)

^w j

To go to the split window below the terminal window

^w c

To close the window below the terminal window

How to View Free Disk Space and Disk Usage From the Linux Terminal

https://www.howtogeek.com/409611/how-to-view-free-disk-space-and-disk-usage-from-the-linux-terminal/

How to connect to a Postgresql server from a terminal in Linux

https://phoenixnap.com/kb/how-to-connect-postgresql-database-command-line