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Kentrell Shillow
Kentrell Shillow

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Linux OS & Basic Commands

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: Image description

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

Image description

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:
    Image description

  • 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:
    Image description

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

Image description

Image of AssemblyAI tool

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