Ubuntu - The Data Science Notebook

Steps after fresh install¶

Run update
- system updates
- update snaps
Configure terminal
Install KeePassXC from Snap
Sync Firefox

Installing software¶

apt¶

sudo apt install gnome-tweaks

sudo apt install git

sudo apt install dconf-editor

sudo apt install vlc # Snap package was not working on Lenovo T470

.deb¶

Miniconda / Anaconda

Snap¶

Using the App Center the following software can easily be installed:

KeePassXC
VS Code
Chromium
VLC
LibreOffice
GIMP
Darktable
Foliate (epub reader)

It is also possible to install via terminal:

sudo snap install keepassxc

sudo snap install code --classic

To list and update all snap packages:

snap list

snap refresh --list

sudo snap refresh

QGIS¶

https://qgis.org/resources/installation-guide/#debian--ubuntu

Nvidia drivers¶

“Software & Updates” --> “Additional Drivers”

Tweaks and configuration¶

Gnome Shell Extensions¶

sudo apt install gnome-shell-extension-manager

Window Is Ready - Notification Remover

Keyboard shortcut Power off¶

Adding shortcut for Power off screen by setting custom shortcut:

gnome-session-quit --power-off

No lock screen after suspend¶

Open dconf editor: org -> gnome -> desktop -> screensaver -> ubuntu-lock-on-suspend

Make header bar of windows “thinner”¶

Create a CSS file under .config\gtk-3\gtk.css with the following content:

headerbar entry,
headerbar spinbutton,
headerbar button,
headerbar separator {
    margin-top: 0px; /* same as headerbar side padding for nicer proportions */
    margin-bottom: 0px;
    min-height: 20px;
}

headerbar {
    min-height: 20px;
    padding-left: 2px; /* same as childrens vertical margins for nicer proportions */
    padding-right: 2px;
    margin: 0px; /* same as headerbar side padding for nicer proportions */
    padding: 0px;
}

Press Alt-F2 und type in r to make the changes effective.

TLP – Linux Advanced Power Management¶

Documentation: https://linrunner.de

Do not use it for newer Thinkpad models starting with T490
- https://pointieststick.com/2020/06/08/lenovo-thinkpad-x1-yoga-impressions-bugs-workarounds-and-thoughts-about-the-future/

For battery charging thresholds I recently dug into that a bit and got the following guidance from the battery team: – If you often discharge your battery to near eempty (< 20%) then start charging at 95% and stop at 100% – If you frequently use the battery but don’t fully discharge. Usage between 50% and 100% then start charging at 75% and stop at 80% – If you always use an AC adapter and rarely use battery start charging at 45% and stop at 50%

sudo apt install tlp tlp-rdw

# for Thinkpads
tlp-stat -b #suggest which additional package to install

# bluetooth off at startup:
sudo nano /etc/tlp.conf

DEVICES_TO_DISABLE_ON_STARTUP="bluetooth"

# Akku-Ladeschwellen vorübergehend auf Maximum setzen
sudo tlp fullcharge [ BAT0 | BAT1 ]

# Akku einmalig bis zur oberen Schwelle laden
sudo tlp chargeonce [ BAT0 | BAT1 ]

Tools¶

PDF¶

Extracting photos from multiple PDFs using pdfunite and pdfimages¶

pdfunite *.pdf allphotos.pdf

pdfimages -j ‘allphotos.pdf’ image

Troubleshooting¶

Error: Can’t format USB storage¶

I got this fixed by doing the following

Type disks and launch the program, select the disk or drive you want to format, press CTRL+F and click format.

After formatting, the disk or drive would be unallocated, therefore you’ll have to create a partition by using the plus button on the screen.. Then insert the name you’ll like to use as the drive or disk name then click on create. Enjoy....

https://askubuntu.com/questions/769079/cant-format-ubuntu-installation-stick/769094

Unix shell¶