The Elite List

Create bootable USB using 'dd' command.

Solution
sudo dd bs=4M if=path/to/input.iso of=/dev/sd conv=fdatasync status=progress

Replace input file path and drive letter(sda/b/c). Use 'lsblk' if confused. Source - https://askubuntu.com/a/377561

Append words to the end of the file in Linux.

Solution
echo 'input' >> filename

Attachs the input to the file. Source - https://www.cyberciti.biz/faq/linux-append-text-to-end-of-file/

Display last few words of a file in Linux.

Solution
tail -c 100 filename

Prints last 100 bytes of the file. Source - https://unix.stackexchange.com/a/167816

Insert text into the beginning of a file in Linux.

Solution
sed -i '1s/^/abcde /' filename

Attachs the input to the file beginning. Source - https://stackoverflow.com/a/9533736/6903724

Install .deb file in Linux.

Solution
sudo dpkg -i /path/a.deb

Use 'sudo apt install -f' for any missing dependencies. Source - https://unix.stackexchange.com/a/159114

Display the first few words of a file in Linux.

Solution
head -c 100 filename

Prints first 100 bytes of the file. Source - https://unix.stackexchange.com/a/167816

"is not in the sudoers file" on a fresh Debian installation

Solution
1. Login as root using 'su' command.
2. Use 'sudo visudo' to edit sudoers file.
3. Add this line ' ALL=(ALL:ALL) ALL'
4. Exit from root.

'Cannot open access to console, the root account is locked.' Raspberry Pi SSH unavailable.

Solution
Connect the HDD/SD card(Raspberry Pi) to a different system and remove any additional lines you added to /etc/fstab.

Cause: Added automatic mount conditions in /etc/fstab, and Raspbian failed to boot.

Install Eclipse Temurin JDK 21 in Debian

Solution
Update package sources, add eclipse adoptium.

wget -O - https://packages.adoptium.net/artifactory/api/gpg/key/public | sudo apt-key add -
echo "deb https://packages.adoptium.net/artifactory/deb $(awk -F= '/^VERSION_CODENAME/{print$2}' /etc/os-release) main" | sudo tee /etc/apt/sources.list.d/adoptium.list
sudo apt update
sudo apt install temurin-21-jdk

Ref: https://askubuntu.com/a/1386901

Error code: Wsl/Service/WSL_E_DISTRO_NOT_FOUND

Solution
Run this command in PowerShell: wsl --unregister docker-desktop.

Fix stuck Docker update/installation. Ref - https://github.com/docker/for-win/issues/13128#issuecomment-1352991678

Docker Desktop distro installation failed - Issue after latest docker update

Solution

Run the command: wsl --unregister docker-desktop
Restart Docker Desktop

deploying WSL2 distributions ensuring main distro is deployed: checking if main distro is up to date: checking main distro bootstrap version: getting main distro bootstrap version: open \\wsl$\docker-desktop\etc\wsl_bootstrap_version: The filename, directory name, or volume label syntax is incorrect. checking if isocache exists: CreateFile \\wsl$\docker-desktop-data\isocache\: The filename, directory name, or volume label syntax is incorrect.

Headless Linux authentication - Shopify/Github etc - Error: spawn xdg-open ENOENT

Solution
sudo apt install xdg-utils This will provide the xdg-open utility, which Shopify CLI uses to open URLs in your default web browser.

Error: spawn xdg-open ENOENT at ChildProcess._handle.onexit (node:internal/child_process:285:19) at onErrorNT (node:internal/child_process:483:16) at process.processTicksAndRejections (node:internal/process/task_queues:90:21)

Linux | Technical Handbook