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CompTIA Linux+/LPIC-1 Portable Command Guide: All the commands for the CompTIA LX0-103 & LX0-104 and LPI 101-400 & 102-400 exams in one compact,

Name: CompTIA Linux+/LPIC-1 Portable Command Guide: All the commands for the CompTIA LX0-103 & LX0-104 and LPI 101-400 & 102-400 exams in one compact,
Author: William Rothwell
ISBN: 9780134692357

by William Rothwell

September 2017

Intermediate to advanced

336 pages

7h 18m

English

Pearson IT Certification

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Cover Page
Title Page
Copyright Page
Contents at a Glance
Contents
Introduction
Part I: System Architecture
CHAPTER 1 Determine and Configure Hardware Settings
/sysKey Files and Directories in /sys/procKey Files and Directories in /proc/devKey Files in /devmodprobeKey Options for the modprobe CommandlsmodOutput of the lsmod CommandlspciKey Options for the lspci CommandlsusbKey Options for the lsusb Command
CHAPTER 2 Boot the System
The Boot SequenceCommon Commands for the Boot LoaderOptions for the Kernel at Boot TimeSysVinitSystemdUpstartBoot Events in the Log Filesdmesg
CHAPTER 3 Change Runlevels / Boot Targets and Shut Down or Reboot System
Set the Default Runlevel or Boot TargetChange between Runlevels / Boot Targets, Including Single-User ModeShut Down and Reboot from the Command LineAlert Users Before Switching Runlevels / Boot Targets or Other Major System EventsProperly Terminate Processes/etc/inittabshutdowninit/etc/init.d/telinitsystemdsystemctl/etc/systemd//usr/lib/systemd/wall

Part II: Linux Installation and Package Management
CHAPTER 4 Design Hard Disk Layout
Allocate Filesystems and Swap Space to Separate Partitions or DisksTailor the Design to the Intended Use of the SystemEnsure the /boot Partition Conforms to the Hardware Architecture Requirements for BootingKnowledge of Basic features of LVM/ (root) Filesystem/var Filesystem/home Filesystem/boot FilesystemSwap SpaceMount PointsPartitions
CHAPTER 5 Install a Boot Manager
Providing Alternative Boot Locations and Backup Boot OptionsInstall and Configure a Boot Loader Such As GRUB LegacyPerform Basic Configuration Changes for GRUB 2Interact with the Boot Loadermenu.lst, grub.cfg, and grub.confgrub-installgrub-mkconfigMBR
CHAPTER 6 Manage Shared Libraries
Identify Shared LibrariesIdentify the Typical Locations of System LibrariesLoad Shared Librarieslddldconfig/etc/ld.so.confLD_LIBRARY_PATH
CHAPTER 7 Use Debian Package Management
Install, Upgrade, and Uninstall Debian Binary PackagesFind Packages Containing Specific Files or Libraries that May or May Not Be InstalledObtain Package Information Such As Version, Content, Dependencies, Package Integrity, and Installation Status (Whether or Not the Package Is Installed)/etc/apt/sources.listdpkgdpkg-reconfigureapt-getapt-cacheaptitude
CHAPTER 8 Use RPM and YUM Package Management
Install, Reinstall, Upgrade, and Remove Packages Using RPM and YUMObtain Information on RPM Packages Such As Version, Status, Dependencies, Integrity, and SignaturesDetermine What Files a Package Provides, as Well as Find Which Package a Specific File Comes Fromrpmrpm2cpio/etc/yum.conf/etc/yum.repos.d/yumyumdownloader
Part III: GNU and Unix Commands
CHAPTER 9 Work on the Command Line
Use Single Shell Commands and One-Line Command Sequences to Perform Basic Tasks on the Command LineUse and Modify the Shell Environment, Including Defining, Referencing, and Exporting Environment VariablesUse and Edit Command HistoryInvoke Commands Inside and Outside the Defined Pathbashechoenvexportpwdsetunsetmanunamehistory.bash_history
CHAPTER 10 Process Text Streams Using Filters
catcutexpandfmtheadjoinlessnlodpasteprsedsortsplittailtrunexpanduniqwc
CHAPTER 11 Perform Basic File Management
Copy, Move, and Remove Files and Directories IndividuallyCopy Multiple Files and Directories RecursivelyRemove Files and Directories RecursivelyUse Simple and Advanced Wildcard Specifications in CommandsUsing find to Locate and Act on Files Based on Type, Size, or TimeUsage of tar, cpio, and ddcpfindmkdirmvlsrmrmdirtouchtarcpioddfilegzipgunzipbzip2xzFile Globbing
CHAPTER 12 Use Streams, Pipes, and Redirects
Redirecting Standard Input, Standard Output, and Standard ErrorPipe the Output of One Command to the Input of Another CommandUse the Output of One Command as Arguments to Another CommandSend Output to Both stdout and a Fileteexargs
CHAPTER 13 Create, Monitor, and Kill Processes
Run Jobs in the Foreground and BackgroundSignal a Program to Continue Running After LogoutMonitor Active ProcessesSelect and Sort Processes for DisplaySend Signals to Processes&bgfgjobskillnohuppstopfreeuptimepgreppkillkillall
CHAPTER 14 Modify Process Execution Priorities
Know the Default Priority of a Job that Is CreatedRun a Program with Higher or Lower Priority than the DefaultChange the Priority of a Running Processnicepsrenicetop
CHAPTER 15 Search Text Files Using Regular Expressions
Create Simple Regular Expressions Containing Several Notational ElementsUse Regular Expression Tools to Perform Searches through a Filesystem or File Contentgrepegrepfgrepsedregex(7)
CHAPTER 16 Perform Basic File Editing Operations Using vi
Navigate a Document Using viUse Basic vi ModesInsert, Edit, Delete, Copy, and Find Textvi/, ?h, j, k, li, o, ac, d, p, y, dd, yyZZ, :w!, :q!, :e!
Part IV: Devices, Linux Filesystems, and the Filesystem Hierarchy Standard
CHAPTER 17 Create Partitions and Filesystems
Manage MBR Partition TablesUse Various mkfs Commands to Create Various Filesystems, Such As ext2/ext3/ext4, XFS, and VFATAwareness of ReiserFS and btrfsBasic Knowledge of gdisk and parted with GPfdiskgdiskpartedmkfsmkswapswapon
CHAPTER 18 Maintain the Integrity of Filesystems
Verify the Integrity of FilesystemsMonitor Free Space and InodesRepair Simple Filesystem Problemsdudffscke2fsckmke2fsdebugfsdumpe2fstune2fsXFS Tools (Such As xfs_metadump and xfs_info)
CHAPTER 19 Control Mounting and Unmounting of Filesystems
Manually Mount and Unmount FilesystemsConfigure Filesystem Mounting on BootupConfigure User-Mountable Removable Filesystems/etc/fstab/mediamountumount
CHAPTER 20 Manage Disk Quotas
Set Up a Disk Quota for a FilesystemEdit, Check, and Generate User Quota Reportsquotaedquotarepquotaquotaon
CHAPTER 21 Manage File Permissions and Ownership
Manage Access Permissions on Regular and Special Files As Well As DirectoriesUse Access Modes Such As suid, sgid, and the Sticky Bit to Maintain SecurityKnow How to Change the File Creation MaskUse the Group Field to Grant File Access to Group Memberschmodumaskchownchgrp
CHAPTER 22 Create and Change Hard and Symbolic Links
Create LinksIdentify Hard and/or Soft LinksCopying Versus Linking FilesHard LinksSoft LinksUse Links to Support System Administration Taskslnls
CHAPTER 23 Find System Files and Place Files in the Correct Location
Understand the Correct Locations of Files Under the FHSFind Files and Commands on a Linux SystemKnow the Location and Purpose of Important Files and Directories as Defined in the FHSfindlocateupdatedbwhereiswhichtype/etc/updatedb.conf
Part V: Shell Scripting and Data Management
CHAPTER 24 Customize and Use the Shell Environment
Set Environment Variables (For Example, PATH) at Login or When Spawning a New ShellWrite Bash Functions for Frequently Used Sequences of CommandsMaintain Skeleton Directories for New User AccountsSet Command Search Path with the Proper Directorysource/etc/bash.bashrc/etc/profileenvexportsetunset~/.bash_profile~/.bash_login~/.profile~/.bashrc~/.bash_logoutFunctionAliasLists
CHAPTER 25 Customize or Write Simple Scripts
Use Standard sh Syntax (Loops, Tests)Use Command SubstitutionTest Return Values for Success or Failure or Other Information Provided by a CommandPerform Conditional Mailing to the SuperuserCorrectly Select the Script Interpreter through the Shebang (#!) LineManage the Location, Ownership, Execution and suid-rights of scriptsforwhiletestifreadseqexec
CHAPTER 26 SQL Data Management
Use of Basic SQL CommandsPerform Basic Data Manipulationinsertupdateselectdeletefromwheregroup byorder byjoin
Part VI: User Interfaces and Desktops
CHAPTER 27 Install and Configure X11
Verify that the Video Card and Monitor Are Supported by an X ServerAwareness of the X Font ServerBasic Understanding and Knowledge of the X Window Configuration File/etc/X11/xorg.confxhostDISPLAYxwininfoxdpyinfoX
CHAPTER 28 Set Up a Display Manager
Basic Configuration of LightDMTurn the Display Manager On or OffChange the Display Manager GreetingAwareness of XDM, KDM, and GDMlightdm/etc/lightdm
CHAPTER 29 Accessibility
Basic Knowledge of Keyboard Accessibility Settings (AccessX)Basic Knowledge of Visual Settings and ThemesBasic Knowledge of Assistive Technology (AT)Sticky/Repeat KeysSlow/Bounce/Toggle KeysMouse KeysHigh Contrast/Large Print Desktop ThemesScreen ReaderBraille DisplayScreen MagnifierOn-Screen KeyboardOrcaGOKemacspeak
Part VII: Administrative Tasks
CHAPTER 30 Manage User and Group Accounts and Related System Files
Add, Modify, and Remove Users and GroupsManage User/Group Info in Password/Group DatabasesCreate and Manage Special-Purpose and Limited Accounts/etc/passwd/etc/shadow/etc/group/etc/skel/chagegetentgroupaddgroupdelgroupmodpasswduseradduserdelusermod
CHAPTER 31 Automate System Administration Tasks by Scheduling Jobs
Manage cron and at JobsConfigure User Access to cron and at ServicesConfigure anacron/etc/cron.{d,daily,hourly,monthly,weekly}//etc/at.deny/etc/at.allow/etc/crontab/etc/cron.allow/etc/cron.deny/var/spool/cron/crontabatatqatrmanacron/etc/anacrontab
CHAPTER 32 Localization and Internationalization
Configure Locale Settings and Environment VariablesConfigure Timezone Settings and Environment Variables/etc/timezone/etc/localtime/usr/share/zoneinfo/LC_*LC_ALLLANGTZ/usr/bin/localetzselecttimedatectldateiconvUTF-8ISO-8859ASCIIUnicode
Part VIII: Essential System Services
CHAPTER 33 Maintain System Time
Set the System Date and TimeSet the Hardware Clock to the Correct Time in UTCConfigure the Correct TimezoneBasic NTP ConfigurationKnowledge of Using the pool.ntp.org ServiceAwareness of the ntpq Command/usr/share/zoneinfo//etc/timezone/etc/localtime/etc/ntp.confdatehwclockntpdntpdatepool.ntp.org
CHAPTER 34 System Logging
Configuration of the Syslog DaemonUnderstanding of Standard Facilities, Priorities, and ActionsConfiguration of logrotateAwareness of rsyslog and syslog-ngsyslog.confsyslogdklogd/var/log/loggerlogrotate/etc/logrotate.conf/etc/logrotate.d/journalctl/etc/systemd/journald.conf/var/log/journal/
CHAPTER 35 Mail Transfer Agent (MTA) Basics
Create Email AliasesConfigure Email ForwardingKnowledge of Commonly Available MTA Programs (postfix, sendmail, qmail, exim) (no configuration)newaliasesmailmailqpostfixsendmaileximqmail~/.forwardsendmail Emulation Layer Commands
CHAPTER 36 Manage Printers and Printing
Basic CUPS Configuration (for Local and Remote Printers)Manage User Print QueuesTroubleshoot General Printing ProblemsAdd and Remove Jobs from Configured Printer QueuesCUPS Configuration files, Tools, and Utilities/etc/cups/lpd Legacy Interface (lpr, lprm, lpq)
Part IX: Networking Fundamentals
CHAPTER 37 Fundamentals of Internet Protocols
Demonstrate an Understanding of Network Masks and CIDR NotationKnowledge of the Differences Between Private and Public “Dotted Quad” IP AddressesKnowledge About Common TCP and UDP Ports and Services (20, 21, 22, 23, 25, 53, 80, 110, 123, 139, 143, 161, 162, 389, 443, 465, 514, 636, 993, 995)Knowledge About the Differences and Major Features of UDP, TCP, and ICMPKnowledge of the Major Differences Between IPv4 and IPv6Knowledge of the Basic Features of IPv6/etc/servicesIPv4, IPv6SubnettingTCP, UDP, ICMP
CHAPTER 38 Basic Network Configuration
Manually and Automatically Configure Network InterfacesBasic TCP/IP Host ConfigurationSetting a Default Route/etc/hostname/etc/hosts/etc/nsswitch.confifconfigifupifdowniprouteping
CHAPTER 39 Basic Network Troubleshooting
Manually and Automatically Configure Network Interfaces and Routing Tables to Include Adding, Starting, Stopping, Restarting, Deleting, or Reconfiguring Network InterfacesChange, View, or Configure the Routing Table and Correct an Improperly Set Default Route Manuallyifconfigipifupifdownroutehosthostnamedignetstatpingping6traceroutetraceroute6tracepathtracepath6netcat
CHAPTER 40 Configure Client-Side DNS
Query Remote DNS ServersConfigure local name resolution and use remote DNS serversModify the Order in Which Name Resolution Is Done/etc/hosts/etc/resolv.conf/etc/nsswitch.confhostdiggetent
Part X: Security
CHAPTER 41 Perform Security Administration Tasks
Audit a System to Find Files with the suid/sgid Bit SetSet or Change User Passwords and Password-Aging InformationBeing Able to Use nmap and netstat to Discover Open Ports on a SystemSet Up Limits on User Logins, Processes, and Memory UsageDetermine Which Users Have Logged in to the System or Are Currently Logged InBasic sudo Configuration and Usagefindpasswdfuserlsofnmapchagenetstatsudo/etc/sudoerssuusermodulimitwho, w, last
CHAPTER 42 Set Up Host Security
Awareness of Shadow Passwords and How They WorkTurn Off Network Services Not in UseUnderstand the Role of TCP Wrappers/etc/nologin/etc/passwd/etc/shadow/etc/xinetd.d//etc/xinetd.conf/etc/inetd.d//etc/inetd.conf/etc/inittab/etc/init.d//etc/hosts.allow/etc/hosts.deny
CHAPTER 43 Securing Data with Encryption
Perform Basic OpenSSH 2 Client Configuration and UsageUnderstand the Role of OpenSSH 2 Server Host KeysPerform Basic GnuPG Configuration, Usage, and RevocationUnderstand SSH Port Tunnels (Including X11 Tunnels)sshssh-keygenssh-agentssh-add~/.ssh/id_rsa and id_rsa.pub~/.ssh/id_dsa and id_dsa.pub/etc/ssh/ssh_host_rsa_key and ssh_host_rsa_key.pub/etc/ssh/ssh_host_dsa_key and ssh_host_dsa_key.pub~/.ssh/authorized_keysssh_known_hostsgpg~/.gnupg/
Appendix Create Your Own Journal
Index
Code Snippets

Overview

Here are all the CompTIA Linux+/LPIC-1 Linux commands you need in one condensed, portable resource. The CompTIA Linux+/LPIC-1 Portable Command Guide is filled with valuable, easy-to-access information and is portable enough to use wherever your work takes you.

The guide summarizes all Linux+/LPIC-1 certification-level Linux commands, keywords, command arguments, and associated prompts, and provides tips and examples of how to apply them to real-world scenarios. Configuration examples throughout the book provide you with a better understanding of how these commands are used in real-world environments.

This book reflects topics in today’s CompTIA LX0-103 & LX0-104 and LPI 101-400 & 102-400 exams. Use this quick reference resource to help you memorize commands and concepts as you work to pass any of these CompTIA or LPI certification exams.

The book is organized into these parts: Exam LX0-103/LPI 101-400

Part I: System Architecture

Part II: Linux Installation and Package Management

Part III: GNU and Unix Commands

Part IV: Devices, Linux Filesystems, Filesystem Hierarchy Standard Exam LX0-104/LPI 102-400

Part V: Shells, Scripting, and Data Management

Part VI: User Interfaces and Desktops

Part VII: Administrative Tasks

Part VIII: Essential System Services

Part IX: Networking Fundamentals

Part X: Securityuick, offline access to all CompTIA

Linux+/LPI LPIC-1 commands for research and solutions
Logical how-to topic groupings for a one-stop resource
Great for review before your Linux+ or LPIC-1 certification exams
Compact size makes it easy to carry with you, wherever you go
“Create Your Own Journal” appendix with blank, lined pages allows you to personalize the book for your needs
“What Do You Want to Do?” chart inside front cover helps you to quickly reference specific tasks

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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CCNP and CCIE Enterprise Core & CCNP Enterprise Advanced Routing Portable Command Guide: All ENCOR (350-401) and ENARSI (300-410) Commands in One Compact, Portable Resource

Scott Empson, Patrick Gargano

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