Linux Help Commands

On Linux terminal three type of help command can be use:

  • [command] –help
  • whatis [command]
  • man [command]

[command] –help : Longer version of the help, there is a list and options.
whatis [command] : Quick and shorter information about the command.
man [command]: Complete list of the help with all information.

Examples:

# ls --help
# whatis ls
# man ls