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Install sudo package as root:
# apt-get install sudo

Add a user to sudo group as root:
# usermod -a -G sudo username

Log the user (username) out of the current session and back in again. Test that it works:
$ sudo test

Ignore the warning message. If successfully completed no output will be generated and you should be returned to the terminal prompt as usual.

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APT::Default-Release "testing";

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#!/bin/bash
docker inspect $1 | jq -r '.[].NetworkSettings.IPAddress'

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Install docker:
$ sudo aptitude install docker.io

Add user to docker group to avoid using sudo:
$ sudo usermod -a -G docker $USER

Logout and back in again to enable the new group for the user.

References:
https://docs.docker.com/installation/debian/

swyngaard

Install ffmpeg or libav-tools.

Change -video_size to match your desktop resolution.

Record your desktop by executing the script:
./record.sh

Record without audio as follows:
./record_no_audio.sh

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Find the UUID of the partition by running the following command:
$ sudo blkid

Create the mount point under /media as follows:
$ sudo mkdir /media/backup

Add the following line to /etc/fstab to mount the ext4 partition on boot:
UUID=fb72eb53-a418-4152-b63e-d16256e81134    /media/backup    ext4    defaults,user    0    0

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Find the UUID of the paritions by running the following command:

sudo blkid

Output from the above command will look similar to the following:

/dev/nvme0n1p1: LABEL="SYSTEM" UUID="9403-16A5" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="02ea9cd5-3978-4c4f-a4ea-b51d9c7ffc37"
/dev/nvme0n1p3: LABEL="Windows" UUID="FC82088E82084F96" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="d66e2825-09c8-4c99-b529-77068113c88c"
/dev/nvme0n1p4: LABEL="WinRE_DRV" UUID="A6E808F4E808C491" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="fd5ff108-9a06-4a2a-a7f4-e74e583a0f3c"
/dev/nvme0n1p5: UUID="1801f4f8-7d90-4d70-b3a3-5d4344a22d6a" TYPE="ext4" PARTUUID="98df8734-8cd9-40db-9300-cba481198c42"

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Find the UUID of the partition by running the following command:
$ sudo blkid

Create the mount point under /media as follows:
$ sudo mkdir /media/scratch

Add the following line to /etc/fstab to mount the ntfs partition on boot:
UUID=60C469A9C46981E0    /media/scratch    ntfs-3g    auto,user,exec,permissions,windows_names    0    0

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Enable the ability to start containers in the current shell session:
./start.sh

Alternatively, execute the following set of commands:
$ sudo cgm create all $USER
$ sudo cgm chown all $USER $(id -u $USER) $(id -g $USER)
$ cgm movepid all $USER $$

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Install pdftk:
sudo aptitude install pdftk

Concatenate the 1st page of a.pdf with the 2nd and 3rd pages of b.pdf to produce c.pdf:
pdftk A=a.pdf B=b.pdf cat A1 B2-3 output c.pdf