Linux OS & Basic Commands

Kentrell Shillow — Sat, 20 Jul 2024 23:17:13 +0000

Features of the Linux Operating System

Multiprogramming
Time-sharing
Multitasking
Virtual Memory
Shared Libraries
POSIX(Portable Operating System for the UNIX environment)- Compliance
Samba
Cron Scheduler
Network Information Service(NIS)
Data Archival Utilities
Web Server
Office suite
Licensing

Linux Architecture
Three main software components

Kernel
Shell
Linux Utilities and Application Program

Basic Commands in Linux

To navigate to a new directory, the present working directory or print working directory(pwd) Example:

Forgotten whether youre logged in as root or another user, you can use the (whoami) command.

Navigating the Linux Filesystem

Changing Directories from the terminal with the command>>(cd)change directories
Example: how to change to the /etc directory used to store configuration files.
Example:
To see the contents of a directory, you can use the ls (list) command. The command lists both the files and directories contained in the directory.
For more information about the files and directories you can the -l switch after ls command.
Example:

Every command, application, or utility has a dedicated help file in Linux.
Example if I needed help using wireless cracking tool, aircrack-ng.
Simply type command>>aircrack-ng --help

Intro to Linux

Kentrell Shillow — Sat, 20 Jul 2024 23:04:24 +0000

Operating Systems- a software that acts as an interface between a user and a computer.
Functions of an Operating System

Command Interpretation:
Memory Management
Peripheral Management
Process Management

Types of Operating Systems
Single User Operating System is designed to be used by only one person or user at a time

Personal Computer(PC)
Microsoft Disk Operating System(MSDOS)

Multi-User Operating System are capable of running multiple programs concurrently and can share resources. A multi-user system can consists of a computer with several terminals connected to it.

Dumb Terminal
Smart Terminal

DEV Community: Kentrell Shillow

Linux OS & Basic Commands

Intro to Linux