The Complete Linux Shell Script Master

What you'll learn
Understand the role of all special characters used by the shell
Correct use of quotation marks including the difference between single and double quotation marks
find and xargs
Understanding the difference between shell and environment variables
Linux essential commands(tr, sort, seq, cat, hexdump, cut, uniq, tee, echo, printf, read, wc, comm)
Using EXPORT correctly for your purpose
Difference between function and alias
Create an automated scripting schedule
4 ways to run the script
3 effective ways to debug scripts
Heredocument and Hearstring
eval
Regular expressions and grep, sed
Writing BASH shell scripts like a hacker
Requirements
Some knowledge of linux would be helpful, but not required.
Description
This lecture provides a quick explanation of the tricky bash shell grammar of Linux, such as quotation marks, pipes, and redirections, and presents a procedural method of shell coding. This will make it an opportunity to have a strong confidence in the development of the Linux environment.In the modern computing environment, Linux has long been an important mainstream with Windows.Linux is no longer exclusive to hackers, and many developers are asked to develop in the Linux environment. Artificial intelligence, autonomous driving, machine learning, big data, cloud computing, IoT, and other future technologies are all created on the basis of the Linux environment.Numerous open sources are first tested and supported on Linux.§ The Linux shell is like a Swiss Army knife for developersFor server-side JavaScript, Python and other languages, the development environment is actually a shell. Many engineers have realized that direct access to simple command line tools can be very efficient when working. In order to use modern programming languages, you can manage dependency management and packaging on a shell-based basis.The shell provides users with a common environment and interface that anyone can access without installing complex components.The diversity of programming languages and developer tools has increased, but in many ways the operating platform used by engineers has been rather simplified.§ Many corporate customers have moved from Unix to the Linux platformEngineers expect Docker to make the operating environment much more uniform and Linux-like.For containerized tasks, Linux and shell skills are important. "This has led to increased interest in shells"For open source, it is often built to run in a container on Linux.The shell is now the most common way to manage Linux systems, and as many developers standardize Linux systems as operating environments, shell technology has become even more important.DevOps, the main flow of modern software development methods, is where a single group is responsible for both, instead of one group focusing on functional development and the other focusing on reliable software operation.§ Automation is closely tied to shell scripting.Many tasks that require automation can be easily handled using shell scripts. If you can't script it, you can't automate it, and automation is essential to operating increasingly complex systems.ps. Shell scripts were used for filming, editing, and uploading this video. †§ This lecture was produced for the same purpose as above.Having been using shell scripts for over 10 years, I know what is difficult and what is important.To be good at shell scripts in Linux you need two elementsFirst, you need to be familiar with the shell syntax.Special characters can be used for different functions depending on where they are used. For example, the redirection symbols < > are also used in test statements.Also, in the case of quotation marks, single quotation marks and double quotation marks must be used separately, but it is easy to fail if you do not pay attention to the command when it is linked.Second, you need to remember about 20 to 30 essential commands of Linux, even options.The reason this is necessary is when you quickly construct a workflow using the pipe symbol, you will need to come up with a suitable command to use it. We have to immediately decide whether to use cut, tr, or curly brace expansion."I made the video with care to make it as easy to understand as possible for beginners to Linux"Basic terms are explained using a rich subtitle system and animations so that you can follow the class without difficulty.
Overview
Section 1: Linux fundamentals
Lecture 1 Introduction
Lecture 2 Download lecture practice examples
Lecture 3 Linux filename convention
Lecture 4 Auto completion
Lecture 5 Linux directory structure
Lecture 6 Path change(Absolute and relative paths)
Lecture 7 File Access Permission
Lecture 8 Symbolic and hard links
Section 2: Shell basic commands
Lecture 9 How to use echo
Lecture 10 Structure of the command
Lecture 11 glob and white space
Lecture 12 quote
Lecture 13[..] and Test
Lecture 14 Command(wc)
Lecture 15 Command(tail)
Lecture 16 alias
Lecture 17 Command(pushd-popd)
Lecture 18 Command(printf)
Lecture 19 Command(read)
Lecture 20 while..do..done
Lecture 21 4 ways to use executable file
Section 3: Shell script
Lecture 22 What is a shell script?
Lecture 23 How to write a script
Lecture 24 DOS style line ending
Lecture 25 4 ways to run the script
Lecture 26 Special character type preview
Lecture 27 Shell variable
Lecture 28 Parameter substitution and quotation marks
Lecture 29 Special parameters
Lecture 30 Environment variable
Lecture 31 declare
Lecture 32 Parameter expansion(PE)
Lecture 33 globe pattern
Lecture 34 Command(tr)
Lecture 35 Command(cut)
Lecture 36 Extended glob
Lecture 37 Shell script syntax checking tool
Lecture 38 Color Text
Lecture 39 DRILL
Section 4: Regular expressions and search tools
Lecture 40 Regular expression
Lecture 41 Regular expression comparison(if..fi)
Lecture 42 DRILL
Lecture 43 Command(grep)
Lecture 44 Command(sed)
Lecture 45 Brace expansion
Lecture 46 Command Substitution
Lecture 47 Arithmetic expansion
Lecture 48 Exit and exit status
Lecture 49 Logical operation AND OR
Lecture 50 Login shell and non-login shell
Lecture 51 Command separator
Lecture 52 Inline Group
Section 5: Comparison and loop statements
Lecture 53 Conditional(if..else.fi)
Lecture 54[..] vs[[..]]
Lecture 55 Caution when using quote
Lecture 56 Comparison meta string
Lecture 57 DRILL
Lecture 58 while loop
Lecture 59 DRILL
Lecture 60 for..in loop
Lecture 61 DRILL
Lecture 62 for((;) loop
Lecture 63 Command(date)
Lecture 64 DRILL
Lecture 65 Loop statement and glob
Lecture 66 DRILL
Lecture 67 Command(seq)
Lecture 68 DRILL
Lecture 69 case
Lecture 70 DRILL
Lecture 71 getopts
Lecture 72 select
Section 6: Array
Lecture 73 Array
Lecture 74 Array, globs and loops
Lecture 75 DRILL
Lecture 76 find & -print0
Lecture 77 Command(find)
Section 7: I/O and environment variables
Lecture 78 Input and output
Lecture 79 Positional parameters
Lecture 80 Environment variables and export
Lecture 81 The scope of the variable
Lecture 82 File descriptor
Lecture 83 Redirection
Section 8: Useful utility
Lecture 84 Command line photoshop(imagemagick)
Lecture 85 Command(nohup)
Lecture 86 Command(md5sum)
Lecture 87 Command(tee)
Lecture 88 HEREDOC
Lecture 89 Case analysis
Lecture 90 HERESTRING
Lecture 91 Command(uniq)
Lecture 92 Command(sort)
Section 9: Pipe and job control
Lecture 93 Pipe
Lecture 94 Process Substitution
Lecture 95 Sub shell
Lecture 96 Function
Lecture 97 Command(shift)
Lecture 98 source & bashrc
Lecture 99 Job control
Lecture 100 Debugging
Lecture 101 Command(cron)
Linux server administrator,Those who study artificial intelligence and autonomous driving,Cloud computing based developer,Embedded Linux Developer,Who wants to hack,Those who want to deal with Linux well,If you want to create an automation program on your Mac,Those who need to create workflows such as NAS server, cpdf, imagemagick, ffmpeg, etc.


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