book

Beginning the Linux Command Line, Second edition

by Sander van Vugt

November 2015

Beginner

416 pages

12h 22m

English

Apress

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Linux DistributionsLinux HistoryOpen SourceThe First DistributionsLinux Turning MainstreamLogging In and OutDifferent Login InterfacesWorking with a User AccountCommand-Line BasicsBash: The Command InterpreterCommands, Options, and ArgumentsPiping and RedirectionPipingRedirectionGetting HelpUsing man to Get HelpUsing the --help OptionGetting Information on Installed PackagesWorking with the ShellUsing the Shell to Best EffectManaging Bash with Key SequencesSummary
Changing Your PasswordWorking with Virtual ConsolesBecoming Another UserObtaining Information About Other UsersCommunicating with Other UsersReal-Time CommunicationSending Mail from the Command LineFinding Your Way in the File SystemDefault DirectoriesWorking with the Linux File SystemWorking with DirectoriesWorking with FilesCool CommandsDisplaying a Calendar with calClearing Your Screen with clearDisplaying System Information with uname and hostnameCounting Words, Lines, and Characters with wcChanging and Showing Date and Time with dateSummary

Mounting DisksUsing the mount CommandUnmounting DevicesAutomating Mounts with /etc/fstabChecking File System IntegrityCreating BackupsMaking File Backups with tarMaking Device Backups Using ddWorking with LinksWhy Use Links?Working with Symbolic LinksWorking with Hard LinksLinks RecapSummary
Working with ViVi ModesSaving and QuittingCutting, Copying, and PastingDeleting TextMoving Through Text FilesChanging All Occurrences of a String in a Text FileVi SummarizedDisplaying Contents of Text FilesShowing File Contents with cat and tacShowing a File’s Last Lines with tailDisplaying the First Lines in a File with headBrowsing File Contents with less and moreCool Text File Manipulation ToolsChanging Contents in a Batch with trSorting Text Files with sortFinding Differences Between Text Files with diffChecking Whether a Line Exists Twice with uniqGetting Specific Information with cutAdvanced Text File Filtering and ProcessingWorking with Basic Regular ExpressionsWorking with Programmable FiltersPrinting FilesManaging CUPS Print QueuesFinding FilesSummary
Addressing Storage DevicesFile System Labelsudev Device NamesWorking with UUIDCreating PartitionsUnderstanding PartitionsUnderstanding MBR and GPT DisksCreating MBR PartitionsManaging Partitions with fdiskCreating PartitionsCreating GPT Partitions with gdiskWorking with cfdiskRecovering Lost Partitions with gpartCreating Logical VolumesUnderstanding Logical VolumesSetting Up a Disk with Logical Volume ManagerCreating Physical VolumesCreating Volume GroupsCreating Logical VolumesWorking with SnapshotsBasic LVM TroubleshootingWorking with File SystemsUnderstanding File SystemsAbout Superblocks, Inode Bitmaps, and Block BitmapsJournalingIndexingBtrfsFormatting File SystemsMaintaining File SystemsAnalyzing and Repairing ExtAnalyzing and Repairing XFS File SystemsResizing File SystemsResizing a File System in a Logical VolumeResizing Partitions with GPartedWorking with Windows File SystemsCloning DevicesSummary
Setting Up User AccountsUnderstanding Users and Their PropertiesCommands for User ManagementWorking with Default Values for User ManagementManaging PasswordsPerforming Account Maintenance with passwdManaging Password ExpirationBehind the Commands: Configuration FilesGroup MembershipCreating GroupsThe Use of Group PasswordsManaging the User’s Shell EnvironmentCreating Shell Login ScriptsShowing Messages to Users Logging InApplying Quota to Allow a Maximum Amount of FilesInstalling the Quota SoftwarePreparing the File System for QuotaInitializing QuotaSetting Quota for Users and GroupsTechniques Behind AuthenticationUnderstanding Pluggable Authentication ModulesDiscovering PAM ModulesThe role of /etc/nsswitch.confConfiguring Administrator Tasks with sudoSummary
Setting OwnershipDisplaying OwnershipChanging User OwnershipChanging Group OwnershipDefault OwnershipBasic Permissions: Read, Write, and ExecuteUnderstanding Read, Write, and Execute PermissionsApplying Read, Write, and Execute PermissionsAdvanced PermissionsUnderstanding Advanced PermissionsApplying Advanced PermissionsWorking with Access Control ListsUnderstanding ACLsPreparing Your File System for ACLsChanging and Viewing ACL Settings with setfacl and getfaclSetting Default Permissions with umaskWorking with AttributesSummary
Understanding Software ManagementManaging RPM PackagesWorking with RPMWorking with yumWorking with zypperManaging DEB PackagesManaging .deb Software RepositoriesUbuntu Package Management UtilitiesSummary
Understanding Linux ProcessesMonitoring ProcessesMonitoring Processes with topFinding Processes with psFinding PIDs with pgrepShowing Parent-Child Relations with pstreeManaging ProcessesAdjusting Process Priority with niceProcess Management from topScheduling ProcessesCreating user crontabsUnderstanding cron.{hourly|daily|weekly|monthly}Using /etc/cron.dSummary
Understanding LoggingMonitoring Files in /var/logConfiguring the syslog ServiceConfiguring syslog-ngSending Logs Yourself with loggerRotating Old Log FilesUnderstanding JournaldSummary
A Quick Introduction to Computer NetworkingUnderstanding Network Device NamingSetting the IP AddressUsing the ip ToolUsing ifconfigUsing Virtual Ip addresses with ifconfigStoring Address ConfigurationStoring IP Address Configuration on UbuntuStoring IP Address Configuration on Red HatStoring IP Address Configuration on SUSEConfiguring RoutingManaging the Default Route with routeManaging the Default Route with the ip ToolStoring Routing InformationResolving DNS Names to IP AddressesThe Role of the /etc/nsswitch.conf FileUsing the /etc/hosts FileTuning the Network Card with ethtoolAnalyzing Network ConnectionsTesting ConnectivityTesting RoutingTesting Availability of ServicesConnecting Remotely with Secure ShellWorking with Public/Private Key PairsWorking with Secure ShellConfiguring SSHUsing SSH Key-Based AuthenticationCaching Keys with ssh- ssh-agentTunneling Traffic with SSHSummary
Operating File Servers SecurelyCreating a Samba File ServerBackground of the Samba ProjectConfiguring a Samba File ServerAccessing a Samba File ServerBasic Samba TroubleshootingConfiguring an NFS ServerNFS BackgroundsUnderstanding NFS ProcessesConfiguring an NFS ServerConfiguring an NFS ClientSummary
Understanding the KernelManaging Kernel ModulesListing Modules with lsmodLoading and Unloading Modules with modprobeDisplaying Module Properties with modinfoChanging Module OptionsManaging Module DependenciesLegacy Commands for Module ManagementTuning Kernel ParametersWriting Changes to /procSome Useful /proc ParametersCompiling Your Own Kernel and Kernel ModulesUnderstanding MakeModifying and Compiling the KernelCompiling ModulesManaging the Grub2 BootloaderSummary
Basic Shell Script ComponentsElements of a Good Shell ScriptExecuting the ScriptWorking with Variables and InputUnderstanding VariablesVariables, Subshells, and SourcingWorking with Script ArgumentsAsking for InputUsing Command SubstitutionSubstitution OperatorsChanging Variable Content with Pattern MatchingPerforming CalculationsUsing Control StructuresUsing if ... then ... elseCaseUsing whileUsing untilUsing forSummary
Installation RequirementsInstalling CentOSInstalling Ubuntu Server

Overview

This is Linux for those of us who don’t mind typing. All Linux users and administrators tend to like the flexibility and speed of Linux administration from the command line in byte–sized chunks, instead of fairly standard graphical user interfaces. Beginning the Linux Command Line is verified against all of the most important Linux distributions, and follows a task–oriented approach which is distribution agnostic. Now this Second Edition of Beginning the Linux Command Line updates to the very latest versions of the Linux Operating System, including the new Btrfs file system and its management, and systemd boot procedure and firewall management with firewalld!

Updated to the latest versions of Linux

Work with files and directories, including Btrfs!

Administer users and security, and deploy firewalld

Understand how Linux is organized, to think Linux!