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After finishing this course you will feel confident and have a base knowledge of the Linux command shell.
We will have a look at the first and most basic shell commands.
How can we create files, move them, rename and delete? You will learn in this lecture.
How to change directory, what is the default directory and so on...
The famous echo command will print anything you select on screen. How about Hello World? :-)
More and less are both more and less the same thing, but less is more. You will use them both to look at text one screen at a time.
How to use wc to count words, lines and characters. How to sort text line by line and how to use head and tail to see beginning/end of file.
This is the real power of shell commands: To connect commands together
In this lecture you will learn about the file descriptor stderr that will show all error messages, and how to redirect that output.
You will learn how to enable ssh remote login
sudo is the power. I explain the differences between sudo and su, and how to use these very powerful commands.
What makes a file hidden? And how do we show them?
How to use the chmod to change file permissions
You will learn how file ownerships works and how to change it.
How to inverse the grep and how to ignore case.
About the /etc/passwd file
How to add and delete users
Linux has a simple but effective group management system that will be explained here.
How to get out of the vi editor
This is a short round-up where I conclude the course so far. Thanks for watching!
I have been working in IT since 1991. My focus the last 15 years has been in Routing&Switching and Security. I have certifications in Cisco (CCNA, CCNP, CCSP) since 2000, also certified Checkpoing CCSA/CCSP and ISC2 CISSP. After 20+ years as an IT consultant I have a broad as well as deep knowledge in TCP/IP, routing, switching and firewalling.