How to import data tables from an Internet site and have them automatically updated

 https://wiki.documentfoundation.org/Faq/Calc/113

1. Create a new LibreOffice Calc document.
2. Click on a cell in the table (A1 for example)
3. Go to Sheet ▸ Link to external data.
4. After a few seconds (sometimes a bit longer) a new window appears:
5. Check the Detect special numbers box.
6. Click OK.

What is a mountpoint?

A mount point is a directory on a file system that is logically linked to another file system. Mount points are used to make the data on a different physical storage drive easily available in a folder structure. Mount points are fundamental to Unix, Linux and macOS. Windows can use mount points, but it is not common.

https://www.techtarget.com/whatis/definition/mount-point

 

Tree command

De tree command kan ook als grep werken:
tree humble*

Window managers

Distrotube, A Comprehensive Guide To Tiling Window Managers:

https://youtu.be/Obzf9ppODJU

1. dwm => very minimal. You will have to patch it. Written in C.
2. xmonad => also very minimal. Written in Haskell
3. qtile => looks like dwm and xmond but it is written in Python
4. awesome => perfect for beginners. It looks like Openbox in that you can open programs with rightclicking in the screen.
5. i3 => very easy
6. herbstluftwm => 
7. bspwm => binary space partitioning window manager. You must create your own hotkey file.

Adjusting mouse sensitivity

https://forums.bunsenlabs.org/viewtopic.php?id=1566

 

 

Umount Target is Busy

 # Umount Target is Busy
Lazy unmount: The third and safer alternative to the force unmount is a lazy unmount. A lazy unmount allows the system to detach the specified mount point in a hierarchical manner. It works by removing any references to the filesystem as soon as it’s not busy.

umount -l /path/to/dev

How do I completely wipe my hard drive in Ubuntu?

There are several programs to do that:

1. wipe
2. srm
3. dd
4. shred
5. scrub

https://linuxhint.com/completely_wipe_hard_drive_ubuntu/