Snippet Collections

Execute a Node.js script that logs the string `"Hello World!"` to the console. This demonstrates running a simple inline JavaScript command in a Node.js environment and an example to print an escaped string to the console.

Disables lingering for a specified user in the system. Note: Lingering allows a user's processes to continue running even after they log out. Disabling lingering stops this behavior.

Stops and removes a Docker container by name or ID provided as an argument.

Downloads a resource, resumes if partially downloaded, follows redirects, and saves it with the same name.

Removes unused Docker resources forcefully.

Retrieve the total memory size from the output of free -h, focusing on the second-to-last line.

The code retrieves the number of CPU cores available on the system by filtering the output of the lscpu command with grep

This Bash script checks the connectivity to a specified host and port using nc (Netcat), and outputs the exit status of the connection attempt.

This script requires a user@host argument and a USER_PASSWORD environment variable. It uses sshpass to securely pass the password to ssh, allowing password-based authentication to the specified host.

Generates an RSA SSH key pair.

This script sets up Docker on a Ubuntu system by updating the package list, installing necessary dependencies, adding Docker's GPG key, configuring the Docker repository, and installing Docker and related plugins. It also enables Docker to start on boot, adds the current user to the Docker group, and checks the installed Docker and Docker Compose versions.

This Bash script generates Helm chart templates using specified input values and outputs the results to a specified directory.

This Bash script converts a given input file to Markdown format and extracts media files, saving the output to a specified file.

This Bash script retrieves the names of evicted pods in a specified Kubernetes namespace, then deletes each of them.

Generate a random alphanumeric string of 11 characters from /dev/urandom, filter it to include only letters and digits, and print the result. This code creates a new random password.

This script checks for the presence of a required user@host argument, then uses ssh-copy-id to copy the local SSH key to the specified remote host, requiring password authentication.

List block devices along with their rotational status (rotational or non-rotational). This code helps identify whether a disk is an SSD (non-rotational) or HDD (rotational).