How to find all duplicate files on Windows 11?

Install CCleaner Free

Tools > Duplicate Finder

How to show the current column number on the status bar in vim?

:set ruler

How to open cmd when installing Windows 11

Press Shift + F10

How to move in insert mode in vim?

https://vi.stackexchange.com/questions/10296/navigation-in-insert-mode

If you just need to modify a small amount of text or a word, you can use <Ctrl-O>h/j/k/l.

<Ctrl-O> takes you back to Normal mode just for that command, and then drops you back into insert mode, so it saves you some amount of key presses, if you need to go into normal mode for a small movement.

'Auto-hide the Dock' not working on Ubuntu

https://askubuntu.com/questions/1313408/dock-auto-hide-not-working-on-desktop-ubuntu-20-04-1

How to convert line endings in vim among Windows, Linux, Mac?

:w ++ff=dos 

:w ++ff=mac 

:w ++ff=unix

How to install Firefox and update it on Ubuntu?

To install - 

$ sudo snap install firefox 

 

To update it - 

$sudo snap refresh firefox