(B16) Linux Basic Part1 Intro, OS , Kernel and Shell, Linux , Unix and Windows Differences

Описание: 20220411 101400
OS: Operating System
-A Software/Program
-which intracts with hardware and user, runs application,service and cmds
Two Parts Kernel and Shell

Kernel: Instracts with Hardware

Shell:instracts with user, shell gives user interface,
run application and cmds

Kernel:
-Process Management
-Disk Management
-Network Management
-Device Management
-Memory Management

Shell: Linux\Unix -Unix like system
-Bourne Shell -sh
-Bourne Again Shell - BASH --currently
-tsh
-csh
-

GUI - Graphical User Interface
CLI - Command Line Interface
TUI - Termial / Text Based User Interface

TUI: ex. nmtui,system-config-firewall-tu

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SOS:Simple Operating System : Windows 10,MS DOS(Desktop OS/Workstation OS)
NOS:Network Operating System : Win Servers, Linux , Unix.. (Server OS)

SUST:Single User Single Task : MS DOS
SUMT:Single User Multi Task : Windows - Windows 10, Windows server 2019
MUMT:Multi User Multi Task : Linux , Unix..

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Linux -

OS - Unix

Assembly Language

MOV A,10
ADD A,5

C language -- Bell Labs

Unix - Bell labs

Distribution Unix:

BSD
HP : HP-UX
IBM : AIX
POIX
Solaries - Sun Microsystem - Oracle
Linux
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Kernel - Shell

Linus Torvalds - took unix kernel -develop Linux Kernel
-published as Open source
-make is as available to everyone , so anyone can download
the linux kernel , develop and distribute


Open Source -OS or application
-Source Code available freely and anybody can modify or develop and redistribute

GPL - General Public License

GNU - GNU Not Unix

https://www.kernel.org/

Linux Kernel Latest Version: 5.17.2

Linux Distribution:
Redhat - Redhat Enterprise Linux
Fedora
SUSE
Debain
Scentific
Oracle -OEL
CentOS
Ubuntu
Linux Mint
Kali Linux/BackTrack

AWS-Linux
Microsoft-Linux
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Linux and Unix diffeneces
almost same CLI based OS, Server, Secure, mumt..
-Linux is Opensources
-Linux as lot of distribution, unix limited
-Most of linux distribution are free
-Linux developer/customer - no support, very limited support
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Linux Windows
-Open Source -Not Open Source
-No Propritory -Micorsoft
-No need take License -Must have License
-Mutli user multi task -Single user Multi task
-Case sensitive -No Case Sensitive
-not mush user friendly -User friendly
-need professional to use it -any one can easy learn and use
-CLI Based OS -GUI Based OS
-Powerful CLI -Powerful GUI
-use SSH to access remotely -use RDP to access remotely
-basically Server -Desktop and Server versions
-Virous free - linux dont run .exe
-virous for windows dont run in linux
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linux is secure, does not mean windows is not
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