CR1030 - Linux Server Administration - Modules 1-4 Study Guide

Study Guide for College of the North Atlantic PPD Campus - CSN Y1S2 Linux Server Administration

What are the Kernel’s 4 jobs?

• Memory Management

• Process Management

• Device Drivers

• System Calls and Security

Terminal

Primary way to interact with Linux.

Shell

A program that takes commands from the keyboard and gives them to the OS to perform.

Distribution

Term for the varying types of Linux OS’

GNOME & KDE

Virtual Desktop Interfaces.

GNU

A Collection of free software that includes the most popular applications.

Root

A Built-in system of user roles.

Package Manager

A tool that provides you with an interface to help you find, install, update, and configure them.

Binaries

Executable files on Linux.

Kernel

The core of OS. Manages the system’s hardware along with all the programs on it.

Daemons

Programs that run in the background independently of the user.

Console

special sort of terminal.

/bin

Contains core linux command files

/boot

contains the linux kernel

/dev

Contains device files such as the CD/DVD Drive

/etc

Contains static config files

/home

optional directory, if included, contains user home directories

/lib

contains shared libraries

/media

contains the mount point for removable media

/mnt

Can be used to mount other resources. Empty by default

/opt

Contains static shareable add-on software packages.

/root

contains the recommended home directory for the root user

/sbin

Contains system binaries used by sys admin

/srv

Contains data files for services

/tmp

Contains temporary files

/usr

contains shareable, read-only apps and files.

/var

Contains variable data files.

.bz2

File compressed using bzip2

.c

Contains a file written in the C coding language

.deb

a Debian package for installing software

.rpm

Red Hat Package File.

.so

Contains a shared object

.src

Source Code File

.tar

A single file made of a collection of files archived using the tar command

.tar.gz

A single file made of a collection of files archived using the tar command, then compressed by using the gzip command.

.gz

A file compressed using the gzip command.

txt

a plain ASCII text file

.ps

Post script file; formatted for printing

.au

Audio File.

.xpm

Image file

.a

Archive File

.h

A C or C++ progam language header file

.cpp

A C++ language source code file.

.o

Program Object File

.php

A PHP script

.sh

Shell Script

.tcl

A TCL script

.pl

A perl script

What are some common Linux file directory commands?

• cp

• mkdir

• mv

• rmdir

• rm

What does the CAT command do?

Used to create a file with specific content.

what does the Touch command do?

creates an empty, also updates a file’s access and modification time and date.