RH124 - Course Presentation

• LCE401 - File Hierarchy System
  • Linux File Hierarchy System
  • File Types
  • The mount Command
  • The /etc/fstab file
    • Understanding the /etc/fstab file
      • Mount Options
  • The umount Command
  • Unix File Systems
    • Superblock
    • Inodes
    • Data Blocks
    • Hard (Physical) Links
    • Soft (Symbolic) Links

• LCE402 - The VIsual Editor
  • Presentation
  • LAB #1 - Creating, Opening and Closing files with VI
    • 1.1 - Commands
    • 1.2 - Creating a new file with VI
    • 1.3 - Opening a file in read-only mode using view
    • 1.4 - Opening a file in read-write mode using VI
  • LAB #2 - The set Command
    • 2.1 - Commands
    • 2.2 - Turning on line numbering using set
  • LAB #3 - Moving around within the file
    • 3.1 - Commands
  • LAB #4 - Inserting Text
    • 4.1 - Commands
    • 4.2 - Inserting text
  • LAB #5 - Searching for Text
    • 5.1 - Commands
    • 5.2 - Searching for and replacing text
  • LAB #6 - Deleting Text
    • 6.1 - Commands
    • 6.2 - Deleting lines
  • LAB #7 - Copy, Cut and Paste
    • 7.1 - Commands
    • 7.2 - Copying, Cutting and pasting text
  • LAB #8 - Configuring a Personalised Interface

• LCE403 - Help and Documentation
  • Help on external commands
  • Help on built-in commands
  • The man command
    • Command Line Switches
  • The apropos command
    • Command Line Switches
  • The makewhatis and whatis Commands under RHEL/CentOS 6
    • Command Line Switches
  • The mandb and whatis commands with RHEL/CentOS 8
    • Command Line Switches
  • The info command
    • Command Line Switches

• LCE404 - Basic Shell Commands and Text Manipulation Tools
  • LAB #1 - Use of Basic Shell Commands
    • 1.1 - The stty Command
    • 1.2 - The date command
    • 1.3 - The who Command
    • 1.4 - The df Command
    • 1.5 - The free Command
    • 1.6 - The whoami Command
    • 1.7 - The pwd Command
    • 1.8 - The cd Command
    • 1.9 - The ls Command
    • 1.10 - The lsof Command
    • 1.11 - The touch Command
    • 1.12 - The echo Command
    • 1.13 - The cp Command
    • 1.14 - The file Command
    • 1.15 - The cat Command
    • 1.16 - The mv Command
    • 1.17 - The mkdir Command
    • 1.18 - The rmdir Command
    • 1.19 - The rm Command
    • 1.20 - The sort Command
    • 1.21 - The more Command
    • 1.22 - The less Command
    • 1.23 - The find Command
    • 1.24 - The su Command
    • 1.25 - The updatedb and locate Commands
    • 1.26 - The whereis Command
    • 1.27 - The which Command
    • 1.28 - The uptime Command
    • 1.29 - The w Command
    • 1.30 - The uname Command
    • 1.31 - The du Command
    • 1.32 - The clear Command
    • 1.33 - The exit Command
    • 1.34 - The logout Command
    • 1.35 - The sleep Command
    • 1.36 - The wall Command
    • 1.37 - The seq Command
    • 1.38 - The screen Command
  • LAB #2 - Switches and Arguments
  • LAB #3 - Regular Expressions
    • BREs
    • EREs
  • Manipulating Text Files
    • Text-search Utilities
      • The grep Command
      • The egrep Command
      • The fgrep Command
      • LAB #4 - Using grep, egrep and fgrep
    • The Stream EDitor SED
      • LAB #5 - Using sed
    • The Text Processor AWK
      • Presentation
      • Field Separation
      • Conditions
        • A regular expression applied to a record
        • A regular expression applied to a field
        • Comparisons
        • Logical Operators
        • Built-in Variables
      • Awk Scripts
      • The printf function
      • Control Statements
        • if
        • for
        • while
        • do-while
      • LAB #3 - Using awk
  • LAB 7 - Other Useful Commands
    • 7.1 - The expand Command
    • 7.2 - The unexpand Command
    • 7.3 - The cut Command
    • 7.4 - The uniq Command
    • 7.5 - The tr Command
    • 7.6 - The paste Command
    • 7.7 - The split Command
    • 7.8 - The diff Command
    • 7.9 - The cmp Command
    • 7.10 - The patch Command
    • 7.11 - The strings Command
    • 7.12 - The comm Command
    • 7.13 - The head Command
    • 7.14 - The tail Command
  • LAB #8 - Use the grep, tr and cut commands to extract your IPv4 address from the output of ifconfig
  • LAB #9 - Use the grep, awk and sed commands to extract your IPv4 address from the output of ip

• LCE405 -Command Line Interface
  • Contents
  • The Shell
  • /bin/bash
    • Internal And External Commands
    • Aliases
    • The Prompt
    • The history Command
    • The TAB key
    • Metacharacters
    • Protecting Metacharacters
    • Exit Status
    • Redirections
    • Pipes
    • Command Substitution
    • Conditional Command Execution
  • Environment Variables
    • Principal Variables
    • Internationalisation and Localisation
    • Special Variables
    • The env Command
  • Bash Shell Options
    • noclobber
    • noglob
    • nounset
  • Basic Shell Scripting
    • Execution
    • The read command
    • The test Command
    • The [[ expression ]] Command
    • Shell Operators
    • The expr Command
    • The let Command
    • Control Structures
    • Loops
    • Start-up Scripts
    • LAB #1 - Start-up Scripts

• LCE501 - Managing Users and Groups
  • Presentation
    • /etc/nsswitch.conf
    • The getent Command
    • The /etc/group and /etc/gshadow files
    • The /etc/passwd and /etc/shadow files
  • Commands
    • Groups
      • groupadd
      • groupdel
      • groupmod
      • newgrp
      • gpasswd
    • Users
      • useradd
      • userdel
      • usermod
      • passwd
      • chage
  • Configuration
  • LAB #1 - Managing Users and Groups
  • LAB #2 - su and su -
  • sudo

• LCE502 - Package Management
  • LAB #1 - Compiling Software
    • 1.1 - ./configure
    • 1.2 - make
    • 1.3 - make check
    • 1.4 - make install
  • LAB #2 - The rpm Command
    • 2.1 - Configuration
    • 2.2 - Usage
  • LAB #3 - The dnf Command
    • 3.1 - Presentation
    • 3.2 - Configuration
    • 3.3 - Repositories
    • 3.4 - Searching for Packages
    • 3.5 - Viewing Information on and Downloading a Package
    • 3.6 - Installing a Package
    • 3.7 - Updating Packages
    • 3.8 - Deleting Packages
  • Shared Libraries
    • Presentation
      • Introduction
      • Shared Object Locations
      • ld-linux.so.2
    • The ldd Command
    • The /etc/ld.so.conf File
    • The ldconfig Command

• LCE503 - Managing File Permissions
  • Presentation
  • Preparation
  • LAB #1 - Basic Unix File Permissions
    • 1.1 - Changing Permissions with chmod
      • Symbolic Mode
      • Octal Mode
      • The umask Command
    • 1.2 - Changing the Owner or the Group with chown and chgrp
      • The chown Command
      • The chgrp Command
  • LAB #2 - Advanced Unix Permissions
    • 2.1 - SUID/SGID bit
    • 2.2 - Inheritance Flag
    • 2.3 - Sticky bit
  • LAB #3 - Extending Linux Permissions using ACLs and Attributes
    • 3.1 - ACLs
    • 3.2 - Attributes

• LCE505 - Process Scheduling
  • cron
    • The /etc/crontab file
    • Time Fields
    • User Crontabs
  • anacron
  • at

• LCE507 - Process Management
  • Presentation
  • Process Types
  • Process Commands
    • The ps Command
    • The pgrep Command
    • The pstree Command
    • The top Command
    • The fg, bg and jobs Commands
    • The wait Command
    • The nice Command
    • The renice Command
    • The nohup Command
    • The kill Command
    • The pkill Command

• LCE508 - Managing Logs
  • Presentation
  • The dmesg Command
  • Security Logging
    • The last Command
    • The lastlog Command
    • The lastb Command
    • The /var/log/secure File
  • The /var/log/audit/audit.log File
    • Managing Audit Events
      • auditd
      • auditctl
    • Viewing Audit Events
      • The aureport Command
      • The ausearch Command
  • The /var/log/messages File
  • Applications
  • rsyslog
    • Priorities
    • Facilitiess
    • The /etc/rsyslog.conf File
      • Modules
      • Global Directives
      • Rules
        • Facility.Priority
        • Facility!Priority
        • Facility=Priority
        • Using the * Wildcard
        • n Facilities with Identical Priorities
        • n Selectors with Identical Actions
  • The logger Command
  • The logrotate Command
  • journald
    • Using Journald
      • Application Specific Messages
      • Boot Messages
      • Priority Specific Messages
      • Messages from a Specific Date Range
      • Real Time Messages
      • Searching with Key Words

• LCE510 - System Startup and Shutdown
  • System Startup
    • Boot Loader
      • BIOS Systems
      • EFI Systems
      • GRUB 2
        • The /boot/grub/grub.cfg File
        • The /etc/default/grub file
        • Files in the /etc/grub.d directory
    • Initramfs
      • The init Script
    • Kernel Booting Process
  • Systemd
    • LAB #1 - The systemctl Command
    • LAB #2 - Configuration Files
      • 2.1 - Default Configuration Files
      • 2.1 - Overloading Default Configuration Files
    • LAB #3 - The systemd-analyze Command
    • LAB #4 - Targets
      • 4.1 - Checking the Target Dependencies
      • 4.2 - The Default Target
        • Checking the Default Target
        • Changing the Default Target
        • Changing the Default Target for the Current Session
    • LAB #5 - Managing Services
      • 5.1 - Single Service Instances
      • 5.2 - Multiple Instance Services
      • 5.3 - Disallowing Modifications to a Service Status
  • LAB #6 - System Shutdown
    • 6.1 - The shutdown Command
    • 6.2 - The reboot Command
    • 6.3 - The halt Command
    • 6.4 - The poweroff Command

• LCE603 - Managing the Network
  • Presentation
    • The nmcli Command
  • LAB #1 - Configuring the Network
    • 1.1 - Connections and Profils
    • 1.2 - Name Resolution
    • 1.3 - Adding a Second IP Address to a Profile
    • 1.4 - The hostname Command
    • 1.5 - The ip Command
    • 1.6 - Manually Activating and Disactivating a Device
    • 1.7 - Static Routing
      • The ip Command
      • Disactivating/Activating Internal Routing on a Server
  • LAB #2 - Diagnostics
    • 2.1 - The ping Command
    • 2.2 - The netstat Command
    • 2.3 - The traceroute Command
  • LAB #3 - SSH
    • 3.1 - Presentation
      • SSH-1
      • SSH-2
    • 3.2 - Configuring the Server
    • 3.3 - Configuring the Client
    • 3.4 - SCP
      • Presentation
      • Usage
    • 3.5 - Authentication with Asymetric Keys

Copyright © 2024 Hugh Norris - Non-contractual document. The Training Program may be modified without notice.