System Programming Course

Shell Scripting Tutorial (Automatic Translation Available)

A quick catch-up with shell basics.

Session Notes

Please open this file with a .md file previewer or view online.

Skills Learned from Week_1 Application:

• Shell basics
• Linux File System Hierarchy
• PATH

How much was I able to work on the Week 1 application?

I installed the Ubuntu WSL system, or alternatively, a Linux/UNIX-like OS on my machine.
I watched the "Shell Scripting Tutorial" video and ran every command on my machine.
I also read the "Session Notes" and executed every command on my machine.

Continuation of Shell Basics

• Concepts of stdin, stdout, and PIPE
• SSH connection and using PuTTY
• top and grep commands
• File permissions chmod
• Basic regex experiments (*, ?)
• Running shell commands from the terminal or from a file

Basic TCP and UDP Sockets with Python

• OSI layers
• Transport layer protocols
• Concepts of TCP and UDP and their differences
• Typical TCP server and client implementation
• Typical UDP client behavior and execution

Click the repository link

Skills Learned from Week_2 Application:

• Understanding of standard input/output streams (stdin, stdout) and the use of pipes in shell operations
• Experience with SSH connections and PuTTY for remote system access
• Proficiency in using shell commands such as top and grep
• Knowledge of file permissions and basic regular expressions (*, ?)
• Ability to execute shell commands both interactively and from scripts
• Comprehension of OSI layers and transport layer protocols (TCP and UDP)
• Understanding the differences between TCP and UDP communication models
• Implementation of a basic TCP server and client using Python
• Execution and analysis of typical UDP client behavior in Python

TO-DO from Week_2 Application:

I've sended my student number to local server.

Skills Learned from Week_3 Application:

• Data-holding objects, POJO
• Preparing objects to be sent over a stream, serialization

  (Click the serialization repository link)

• Google’s protocol that enables object exchange between different programming languages and systems, Protocol Buffers
• Common programming mistakes, and the concepts of mutable and immutable

  (Click the link )

• Is it possible to send an email using telnet with SMTP, which is a text-based protocol?

Internalize the hierarchies in the examples. Try to distribute the workload in multi-threaded matrix multiplication using different partitioning strategies.

• Single-threaded matrix multiplication example repository
• Multi-threaded matrix multiplication example repository

Run shell commands with their parameter options, and make it a habit. Click here to access the documentation page for the commands used in the final exercise.

Run shell commands with their parameter options, and make it a habit. Click here to access the documentation page for the commands used in the final exercise.

The next exercise will be announced soon via Classroom...