Linux Help commands

• Linux differs from Windows
  • Linux Case sensitive
  • All Linux content is saved as a file, including hardware
  • All contents are documents
  • Linux does not rely on the file suffix name to differentiate files, the convention commonly known as the extension is for the administrator to see, do not have to write, write better, Linux through the permissions to distinguish file types
• Man's most important command.
  • A short description of the-F command (=whatis) Print command
  • -k Command (=apropos) to find out which commands contain the preceding command string
  • command to view the command's help information directly
• Help Shell internal commands
  • For Example:help CD
• Info command Detailed command help, usually use not much
• View users who are currently logged on to the system
  • W User Name
  • W.H.O.
  • Last
  • Lastlog

Linux Help commands