The System's default text editor can be defined within /etc/profile. It's given the variable EDITOR.

Add these lines to /etc/profile.d/local.sh:

1
2export EDITOR=vim
3
4export VISUAL=$EDITOR

Then reload that profile with:

1source /etc/profile

If you want to ensure nano never appears again:

1sudo ln -sf $(which vim) $( …

Put your device in 'aeroplane' mode (e.g. where no trace of signal leaves it) by turning off Wi-Fi and blue-tooth.

sudo sv stop wpa_supplicant bluetoothd

Find your device's name with ip a. If unsure, try this:

name=$(ip a | grep -Eo 'wlp\w{3}')

echo $name

Then set that device down:

sudo ip link set $name down

Docs are here.

You will need DNS set up before proceeding.

Install agate.

yay -S agate

Be root!

In my case the domain is 'splint.rs'.

DOMAIN1=splint.rs

You can set up any number of domain names.

DOMAIN2=ttrpgs.com

Make a directory to serve the gemini files from:

GEMDIR=/srv/gemini

mkdir -p $GEMDIR/$DOMAIN1

mkdir -p …

mtpfs

Start

Install:

1yay -S simple-mtpfs

List available phones:

1simple-mtpfs -l

Make a mount point:

1mkdir phone

Check your phone, and tell it to allow access to the USB.

1simple-mtpfs --device 1 phone

Stop

1fusermount -u phone
2rmdir phone

apt

Configurations?

Messed up a package's configuration files?

1sudo apt-get purge [thing]

1sudo apt autoremove 

Check if you still have related things:

1apt search [thing]

1sudo apt-get install [ thing ]

Still have problems?

1sudo dpgk --force-confmiss -i /var/cache/apt/archives/[thing]

tar

Create

Combine many files and directories into a single t-archive file.

1tar cf "$ARCHIVE".tar $DIR

You can remember this with the mnemonic 'Create File'.

Unfortunately, this stores the full file path, so making a tar archive of /etc/nginx/ will store etc/nginx (without the leading /.

It's often better to …

Install with:

1sudo apt install at

Enable the daemon service with:

1sudo systemctl enable --now atd

Then jobs can be specified with absolute time, such as:

1at 16:20

1at noon

1at midnight

1at teatime

Type in your command, e.g.:

1touch /tmp/$FILE.txt

The jobs can also be specified relative to the current time:

1at now …

Automatic Login

Edit /etc/systemd/system/getty@tty1.service.d/override.conf by typing:

1sudo systemctl edit getty@tty1

The put in the following, changing [ USER ] to your username.

1
2[Service]
3ExecStart=
4ExecStart=-/usr/bin/agetty --autologin [ USER ] -s %I 115200,38400,9600 vt102

Automatically Start X

In .bashrc.

1 …

Basics

See a file's contents:

Return full contents of a string:

1awk '{ print }' file

Print the first and second column:

1awk '{print$1$2}'

Return every line with the word 'the' (like grep):

1awk '/the/{print}' file

Print everything containing a lowercase letter:

1awk '/[a-z]/{print}' …