Basic Linux for learning DeveOps

What is DevOps :

DeveOps is a process of improving your application delivery by ensuring, there is a proper Automation, Application quality that is maintain, continuous monitoring, continuous testing.

Why DeveOps: 10 years before when your company updated a application at deadline 10 days: your developer, your system administration, BRE, Qe all are working together and then deliver the updated application. When develops is coming all these work done by a deveops engineer by ensuring proper automation, good quality, monitoring, testing. Deveops work organisations efficiency.

DeveOps Tools:

1. JenKins

2. Git

3. Gitlab

4. Docker

5. Terraform

6. Bamboo

7. Ansible

What is Linux: Linux is an open source operating system that is made up the kernel, the base component of the os.

Linux File System: Most important part of Linux. here...

1. /root: The root file system is the top-level directory of the file system.

2. /bin: The /bin directory contains user executable files.

3. /boot: Contains the static boot loader and kernel executable and configuration files required to boot a Linux computer.

4. /dev: This directory contains the device files for every hardware device attached to the system.

5. /etc: Contains the local system configuration files for the host computer.

6. /home: Home directory storage for user files.

7. /lib: Contains shared library files that are required to boot the system.

8. /sbin: System binary files.

9. /temp: Temporary directory.

10. /var: Variable data files are stored here.

Linux Basic Commands:

1. uname- Showing the current os

2. uname -r - Current version of the os.

3. pwd- Current working directory.

4. mkdir- Creates directory

5. cd- change directory. To navigate different folders.

6. rmdir- Removes empty directories from the directory lists.

7. cp- copy files from one directory to another.

8. mv- rename or replace the files.

9. rm- delete the files.

10. locate- find a file from the datebase.

11. touch- creating a empty files.

12. ls- display information about files in the current directory.

13. ln- creates shortcuts to other files.

14. cat- display files content on the terminal.

15. clear- clear terminal

16. whoami- see users

17. ps- display process terminal.

18. man- access manual all commands for Linuxca.

19. echo- display the process in terminal.

20. cal- view calendar in terminal.

21. date- view date in terminal.

22. whereis- display current location.

23. history- display all command in the terminal.

24. nano- to writing files.

25. chmod- for changing permission.

26. chown- change ownership of the file and directory.

27. chgrp- change group ownership of the file.

28. sort- sort data in numeric way.

29. ping- use to check host is responding or not.

30. grep- search the text pattern in a file.

31. htop

32. ifconfig

33. find

34. apt -get install- install new package

35. apt -get upgrade- new version app package

36. apt -get remove.

File Permissions: In Linux, file permissions are a set of rules that determine who can access, modify and execute.

Set of permissions:

Read (r): viewing the contents of the file.

write (w): modifying the contents of the files.

Execute (x): running file as a program.

Permission Levels:

1. User

2. Group

3. other

We all know that world are most develops in IT fields. To fit for the IT world, Learning deveops is a good choice.