TOC: Linux for Power users

• Setup environment
  1. Setup
• Introduction
  1. Content
  2. What is Linux?
  3. Vendors and Distributions
  4. Linux History
  5. GNU
  6. License - Free and Open Source
  7. Free Software
  8. Unix/Linux Design Principles
  9. Unix vs Linux?
  10. Resources and Getting Help
  11. Linux in Israel
  12. Installation
  13. Exercise: Install Linux
• GUI
  1. Desktop GUIs
  2. GUI Tasks
  3. Exercise: GUI
• Terminal
  1. The powers of the shell
  2. TAB completition
  3. Command History
  4. Chaining commands: Quick Apache/Nginx log analyzer
  5. Remove temp files
  6. Shells
  7. echo
  8. Actions on ENTER
  9. Actions on ENTER - examples
  10. Meta-characters (Wildcards)
  11. Information about the shell
  12. Change password using passwd
  13. Getting Help
  14. Documentation: man
  15. whatis and man sections
  16. Apropos
  17. Sections of the man pages
  18. Command history
  19. which and !!
  20. List all commands in history
  21. Clear screen
  22. Virtualbox: Network access resources
  23. Virtualbox: Allow access from Host to Guest
  24. Virtualbox: Set up host-only network on Ubuntu
  25. Install ssh server
  26. Set up ssh access
  27. Exercise: Terminal
  28. Exercise: commands
• Navigating the File System
  1. File system types
  2. Linux file system structure
  3. Show directory tree
  4. Current Working directory
  5. Directory listing - ls
  6. File types
  7. Hidden files
  8. Change Directory
  9. Display disk usage statistics
  10. du -s
  11. Display free disk space using df
  12. Disk layout
  13. Free Disk space with human readable numbers
  14. Show inodes stats: df -hi
  15. mounting external disks
  16. Exercise: File system
  17. Exercise: Explore /proc
• Manipulating Files and Directories
  1. Creating directory
  2. Create a file using 'touch'
  3. Create file using echo
  4. Copy files and directories
  5. Move files or directories
  6. Removing File or Directory
  7. Symbolic links
  8. Hard links
  9. Determining File types
  10. Finding files (find)
  11. find examples
  12. Search indexed files
  13. Comparing files using diff
  14. Comparing directories using diff
  15. File and Directory Name conventions
  16. Exercise: files
  17. Exercise: shutdown vs halt
• File security - File system rights management
  1. ls -l
  2. chmod
  3. chmod octal
  4. Change ownership with chown
  5. Change group only using chgrp
  6. Default file permissions: umask
  7. Shell Script
  8. Perl
  9. Python
  10. Exercise: Create Bash script
  11. Exercise: File security
  12. Exercise: Remove write protected file
  13. Exercise: chmod
  14. Solution: chmod
• File content
  1. Text editors
  2. nano - a small editor
  3. Displaying file content
  4. cut
  5. sort
  6. uniq
  7. Finding text in a file
  8. word count with wc
  9. tr - transcribe
  10. sed - the stream editor
  11. Compression and archiving
  12. Generate random output
  13. Generate random log
  14. Exercise: log file
  15. Exercise: File content
  16. Exercise: File content round 2
• Redirection and Pipes
  1. Open Channels
  2. Redirection
  3. Redirection bash
  4. Redirection bash append
  5. Redirection bash merge
  6. Redirection tcsh
  7. Redirect to /dev/null
  8. Pipes
  9. Filters
  10. tee
  11. Exercises: redirection
  12. Exercise: HTML content
• Commands and aliases
  1. which
  2. type
  3. whereis
  4. alias
  5. Creating alias in bash
  6. Creating alias in tcsh
  7. Suppress alias
  8. Alias only works in the shell it has been defined in
  9. Exercises: commands and aliases
• Shell
  1. cal - calendar
  2. bc - calculator
  3. time commands
  4. Separating commands
  5. Combining commands
  6. Bash functions
  7. Execute shell file
  8. Grouping commands
  9. Quotes
  10. Spell checking
  11. hostname
  12. date
  13. First day of the month
  14. exit and exit code
  15. locale
  16. Setting the prompt
  17. Secondary prompt
  18. set -o
  19. Start up files (Login shells)
  20. Start up file (Noninteractive shells too)
  21. Startup files
  22. logout script
  23. Exercise: Prompt
• System information
  1. id
  2. who
  3. w
  4. whoami
  5. last
  6. uname
  7. free
  8. vmstat
  9. /proc/meminfo
  10. Exercise: System information
• System administration basics
  1. Basic sysadmin tasks
  2. sudo
  3. su
  4. Logfiles in /var/log
  5. Exercise: sysadmin
• Package Management - Installing software
  1. App-store
  2. Package formats
  3. Package managemnt tools
  4. Instalation with apt-get
  5. apt-cache
  6. aptitude
  7. dpkg
  8. yum on CentOS 7.2 x64
  9. CentOS repoquery
  10. yes
  11. Exercise: Package management
• Process and Job Management
  1. uptime
  2. ps
  3. System load: top
  4. System load: htop
  5. Process state
  6. Process control
  7. Job control
  8. Refuse to die
  9. killall
  10. Zombie demonstration
  11. Reaping child processes demonstration
  12. Stopped process demonstration
  13. List open files (lsof)
  14. Current working directory of a process
  15. Services
  16. tail multiple log files
• Network Basics
  1. IPv4 vs IPv6
  2. ifconfig
  3. Ping
  4. Traceroute
  5. /etc/hosts
  6. Telnet
  7. ssh - Secure Shell
  8. Public key access
  9. Generate public key
  10. Add public key
  11. ftp - File Transfer Protocol
  12. scp - Secure Copy
  13. rsync
  14. curl and wget to fetch web pages
  15. Command line browsers
  16. Sending mail from the command line
  17. Keep remote session using screen
  18. Keep remote session using tmux
  19. tmux multiple session
  20. iftop
  21. Port used by (lsof - list open files)
  22. Port used by example 2
  23. Network ports
  24. Show ports used with netstat
  25. Routing configuration
  26. write
  27. Chat with users using ytalk
  28. Exercise: Networking
  29. Exercise: lorem ipsum
• Scheduling processes
  1. crontab
  2. Load crontab file
  3. crontab examples
  4. Schedule using at or batch
• Boot
  1. Boot stages
  2. BIOS
  3. Boot loader
  4. Grub
  5. init
  6. Multiple OS-es
• NFS - Network Filesystem
  1. Fileserver
• Variables
  1. Legal variables
  2. Setting and getting variables
  3. Backtick or back quote
  4. Command substitution
  5. Exporting variables
  6. env
  7. set
  8. unset
  9. Predefined variables
  10. Change PATH
  11. PATH environment variable
• Bash script
  1. sh-bang
  2. Comments in a Shell script
  3. cd in subshell
  4. Set a variable in a subshell
  5. . (dot command)
  6. Input
  7. Command line parameters
  8. Wildcards on the command line
  9. Command line and wildcard
  10. Command line $#, $*, $@
  11. shift
  12. read
  13. prompte (read -p)
  14. Read several values from one line
  15. Process ID
  16. Background process ID $!
  17. Exit from a script
  18. Exit status in $?
  19. if
  20. elif
  21. file tests
  22. File comparision tests
  23. Empty string
  24. Boolean tests
  25. Boolean expressions
  26. Testing strings - comparing their values
  27. case
  28. Debugging
  29. while-loop
  30. for loop
  31. Iterate over commend line arguments
  32. break
  33. continue
  34. Testing commands
  35. Testing commands while redirecting output
  36. Shell arithmetic
  37. Arrays
  38. Create array
• Users
  1. Overview
  2. /etc/passwd
  3. User properties
  4. /etc/group
  5. /etc/shadow
  6. User manipulation
  7. Group manipulation
  8. /etc/skel
  9. /etc/profile
  10. Changing password
  11. Change shell - chsh
• More
  1. Access modes
  2. Process CSV file
  3. Shell Pipe ideas
  4. List and kill processes by username
  5. Compiling software: Perl
  6. Exercise: compile