Enhancing Skills

Category: Linux

Express VPN on Synolgy NAS

I need to be able to connect to the WAN (internet) over a VPN. I use Express VPN for my solution. I also need to be able to use my local LAN at the same time. Portainer Container build Express VPN container Sonar to verify Here are the steps on […] Read more »

How to Check WiFi Signal Strength on Raspberry Pi 5 Using nmcli

Ensuring a strong WiFi connection on your Raspberry Pi 5 is essential for a seamless experience, whether you’re streaming, browsing, or running network applications. Using the nmcli command-line tool, part of NetworkManager, you can easily check WiFi signal strength and make informed decisions about your network setup. This guide will […] Read more »

Integrating External Services with Traefik: A Step-by-Step Guide

Traefik is a powerful and flexible reverse proxy that makes it easy to manage and route traffic to various services in a Docker environment. Whether you’re hosting services locally or managing external resources, Traefik’s dynamic configuration capabilities allow you to effortlessly connect and secure your services. In this guide, we’ll […] Read more »

Using circuitlab.com

https://www.circuitlab.com https://www.circuitlab.com/workbench https://ultimateelectronicsbook.com wow, only 5 components for hobbiest. Not worth it. Read more »

paste: Merge Lines of Files

Description:The paste command merges lines of files side by side. It takes corresponding lines from each input file and joins them with a tab or another specified delimiter. Command: Sample Input file1.txt: file2.txt: Sample Output (Default): Options: Example with -d Option: To use a comma as a delimiter: Sample Output […] Read more »

uniq: Report or Filter Out Repeated Lines in a File

Description:The uniq command filters out or reports repeated lines in a file. It is often used in combination with the sort command to remove duplicates from sorted data. Command: Sample Input file.txt: Sample Output (Default): Options: Example with -c Option: To count occurrences of each line: Sample Output with -c: […] Read more »

sort: Sort Lines of Text Files

Description:The sort command sorts lines of text files in ascending or descending order based on specified criteria. By default, it sorts lines alphabetically. Command: Sample Input file.txt: Sample Output (Default Sorting): Options: Example with -r Option: To sort lines in reverse order: Sample Output with -r: Example with -n Option: […] Read more »

wc: Print Newline, Word, and Byte Counts

Description:The wc (word count) command is used to count the number of lines, words, and bytes (or characters) in a file. It can also be used to count the number of bytes or characters only. Command: Sample Input file.txt: Sample Output: Explanation: Options: Example with -l Option: To count lines […] Read more »