Lab Exp 01: Introduction to Linux Commands || Operating Systems Lab

"Learn the Basics of Linux Commands in this Operating Systems Lab Introduction. Explore fundamental Linux commands such as 'ls,' 'cat,' 'mkdir,' and more. Enhance your understanding of #Linux #commands for #OperatingSystemLab and #ComputerScience studies. Watch now for insights into #shellscripting and essential #OS concepts."

#gate #ugcnet

[karman]

This video provides an introduction to Linux commands, covering key concepts like algorithms, programs, commands, options, and arguments. It demonstrates the usage of various commands such as ls, mkdir, cd, cat, cp, mv, and rm, explaining their functionalities and how to use them effectively.


Key moments:
00:00 The video discusses the importance of understanding operating system concepts and practicing C programming for an operating system lab course. It covers various experiments related to Linux commands, shell programming, and system calls.
-The lecturer emphasizes the significance of hands-on practice in C programming for a better understanding of the course.
-The video outlines the experiments that will be covered, including Linux commands, shell programming, and system calls, to enhance students' knowledge in operating systems.
-Explanation is provided on the differences between algorithms, programs, and commands, highlighting the importance of clear instructions in programming.
06:04 Understanding command prompts: A dollar prompt signifies a normal user, while a hash prompt indicates a root user. Commands are split into arguments stored as strings in an array.
-Differentiating user roles based on prompts. Dollar prompt for normal users and hash prompt for root users.
-Splitting commands into arguments. Commands are segmented into strings stored as arguments in an array.
-Understanding options in commands. Options modify default command behavior, documented in the manual, and start with a hyphen.
12:08 Understanding manual sections in programming is crucial. The first section covers executable programs, the second covers system calls, and the third covers library functions and how to navigate and utilize them effectively.
-Exploring manual sections aids in understanding executable programs and shell commands, emphasizing their importance in programming.
-Learning about system calls through manual sections is essential for programming and coding tasks, providing a foundational understanding for developers.
-Utilizing manual sections for library functions like printf and scanner enhances programming efficiency by providing clear definitions and usage guidelines.
18:11 Understanding Linux commands like touch, ls, mkdir, and cd is crucial. Touch creates files, ls lists files, mkdir makes directories, and cd changes directories in Linux systems.
-Differentiating file types in Linux using ls command with options like -l and -a. -l shows detailed file information, -a displays hidden files starting with a dot.
-Creating directories in Linux with mkdir command. Using mkdir followed by the directory name to create a new directory in the current location.
-Navigating directories in Linux with cd command. CD allows moving between directories, using 'cd directory_name' to enter a specific directory and 'cd ..' to go back to the parent directory.
24:18 Using the 'touch' command in Linux can update file timestamps and create empty files, while 'cat' command is used to create and write content to files, with redirection for input and output.
-Understanding the purpose of the 'touch' command in Linux for updating file timestamps and creating empty files.
-Exploring the functionality of the 'cat' command in Linux for creating and writing content to files, with input and output redirection.
-Highlighting the importance of using Ctrl+D to save content in the 'cat' command and the role of the shell as a command line interpreter.
30:22 Understanding how to create, update, display, and append content in files using commands like cat and how to avoid overriding file content by using double output redirection.
-Creating and updating files using cat command, saving content with Ctrl D, and displaying file content with cat command.
-Appending content to a file using double output redirection with cat command to avoid overriding existing content.
-Introduction to file creation using touch, creating directories with mkdir, and understanding the CP command for copying files and directories.
36:26 Understanding basic Linux commands like CP for copying, MV for moving or renaming files, and RM for deleting files or directories is essential for file management. These commands help manipulate files efficiently in the Linux system.
-CP command is used for copying files from one directory to another, maintaining the same content. It helps create replicas of files in different locations.
-MV command is utilized for moving files to a different location without creating replicas. It can also be used to rename files or directories.
-RM command is employed for deleting files or directories from the system. It is crucial to understand how to remove unwanted files or folders using this command.
42:30 Using the 'RM -I' command in Linux prompts for confirmation before deleting a file, ensuring intentional deletions and preventing accidental removals, enhancing user control and preventing data loss.
-Creating multiple files using 'Touch' command and deleting them using 'RM' in Linux, showcasing file management capabilities.
-Utilizing the interactive option 'RM -I' to confirm file deletions in Linux, providing a safety net against unintended data loss.
-Comparison with Windows commands, emphasizing the focus on Linux in the course and mentioning differences in commands for similar tasks.

[HabibiTau]

You have taught many small insights which were not discussed in regular class. Thank you sir for your sincere effort.

[peddireddypavansimhareddy]

really great help from you sir . thank you is small word to express your efforts to make sure even zero knowledger will get your content .

[AntonSinha]

00:06 This lecture series covers the experiments related to operating system lab
06:41 Understanding commands and arguments in Linux
12:52 The manual is a great help for developers in understanding and using library functions and commands.
18:32 LS command can display different types of files.
23:38 CD command is used to change directory and Touch command is used to create or update file timestamps
28:36 Learn how to create, write to, and display file content using cat and get commands
34:25 How to use CP and MV commands in Linux
39:49 The MV command can be used to move and rename files in Linux.

[bhaktisagar]

Sir everything I understand thank u so much 💕💕

[Viralclipstc]

thank you sir you have cleared all doubts

[HabibiTau]

Sir, please make a video on changing file permissions. It is mentioned in new lab manual experiment 1.

You directly started shell scripting experiment 2 after file hierarchy of experiment 1.

[coperator]

sir padhaya to badhiya 👍👍 but thoda hindi me teach karte to aur badhiya rahta

[coperator]

great teaching sir app bhi meri tarah english bol rahe hai 😂😂😂🤣

[PrimarySchoolPattiDharamdas]

Hello ❤ sir Good morning and Happy deepawali 😊

[amankushwaha]

Sir are you using writing pad or iPad?? Kindly tell the model and experience based on notes point of view.

[DeepVibes]

Sir when ever I’m writing touch command it is showing permission denied😢

[mrsaxobeat]

Sir can we use' Microsoft Windows Terminal ' ?