Quickstart Shell Scripting

Explore how the Raspberry Pi, a credit-card-sized single-board computer with all components on a single pcb, enables embedded and iot applications globally, while remaining non-upgradable.

Learn to flash Raspberry Pi OS on a Raspberry Pi 4 with Raspberry Pi Imager, enable Wi-Fi without a keyboard, mouse, or monitor, and connect via SSH or remote desktop.

Enable the VNC server on the Raspberry Pi and use a VNC viewer to access the Pi's desktop remotely, then adjust the display resolution for a comfortable GUI.

Learn to remotely connect to a Raspberry Pi using Putty and MobaXterm, combining remote terminal, file transfer, and X11 forwarding.

Turn your Raspberry Pi 4 into a portable tablet with Raspad 3 by assembling the display, power, cooling, and GPIO components, then boot from a microSD card.

Explore Linux distributions based on the Linux kernel, focusing on the Debian family and Raspberry Pi compatibility, with guidance on official downloads and websites.

Discover how to locate the Raspberry Pi's IP and connect via remote desktop, then tour the Raspberry Pi's GUI with Python tools, editors, office suite, browser, and basic utilities.

Explore how the shell provides a command line interface between users and the operating system, and preview bash and other shells on a Raspberry Pi, including how to list them.

Explore the Linux file system with a visual file explorer on the Raspberry Pi, visiting key directories such as /, /home, /boot, and /lib to understand system structure.

Navigate the Linux filesystem from the Raspberry Pi command prompt by using pwd to print the working directory, cd to change directory, and ls to list contents.

Learn how absolute and relative paths navigate the Linux file system, using the home directory, root, and examples like /home/by to explain path references.

The lecture demonstrates creating and deleting directories using mkdir, verifies the results with ls, and navigates into the new directory with cd.

Explore how Linux treats filenames and directory names as case sensitive, enabling two items with the same name but different capitalization. The lecture demonstrates creating and listing them.

Explore linux file types and use ls and less to view detailed, long listings, hidden files, and human-readable sizes with options like -l, -a, and -h.

Configure raspberry pi boot settings and user options using the raspy config utility, or by editing config.txt in the boot partition; adjust password, network, locale, interfacing, memory split, and reboot.

Learn how to get help from the Unix or Linux command line using the man and info commands, and explore ls options with online reference manuals.

Explore essential internet commands for Raspberry Pi and Linux, including ifconfig for network configuration, iwconfig and iwlist for wireless, ping for connectivity, and wget for downloads.

Create and edit files on Linux and Raspberry Pi using touch, nano, and leafpad; view contents with cat, more, and less, including editing CSV and plain text files.

Learn to copy, move, and remove files across directories in shell scripting. The lecture shows creating files, copying to a subdirectory without deleting originals, and moving files to organize directories.

Master head and tail to view the first or last lines of text files, explore paging with more, less, and related commands.

Explores the guard command to extract column-wise and character-wise data from comma separated value files, using delimiter options and field ranges, with practical data engineering applications.

Master bash control operators for shell scripting, including semicolon to separate commands, ampersand to run in background, and && || for conditional execution; learn comments and escape sequences.

Use the ls command with filename globbing to filter file lists by patterns. Master wildcards such as * and ? and square brackets to match prefixes, extensions, and file sets.

Learn how to access the history of commands, print the previous command and its output with the double exclamation mark, and view the full history in order.

Master pipes in the Linux shell to feed the output of one command into another, using examples like ls -la | head to view lines and cut for field extraction.

Define and use shell variables to store numeric and string values in shell scripts. Observe dynamic typing, reassigning values, and referencing variables with the dollar sign to display results.

learn how environment variables in the shell store information about the shell, history file, home directory, language, and PATH for executables.

Explore essential Linux commands on a Raspberry Pi, including who, w, uptime, top, htop, and df -h, to monitor users, processes, uptime, disk usage, and devices.

Learn to use linux commands on raspberry pi to check memory with free -h, locate python with which, and view the hostname and memory split between gpu and cpu.

Learn unix tools for shell scripting, including cat for viewing files, wc for counts, grep for pattern search (case-insensitive), and using sort, unique, pipes, and find.

Learn to use nohup and ampersand in quickstart shell scripting to run background, non-blocking processes and keep them running after the terminal closes.