Linux Training for People New to Linux - How to Use Linux Command Line Components

Linux Commands - The great thing about Linux commands is that they are virtually identical from one Linux distribution (version) to another. So the way the real pros do Linux administration is to work at the Linux command line and run Linux commands.
Learning how to run a Linux command can be very difficult for someone new to Linux, so here are some Linux tips that will help you to learn how to use Linux commands when working at the Linux command line prompt.
There are three main parts of a Linux command:
  1. the Linux command name
  2. options that can be used with the Linux command
  3. the “item(s)” that the Linux command is being run “on”
When you run a Linux command, spaces are used between: the Linux command name, the command options and the “item” the command is being run “on”. The “item” could be a Linux directory, file, user or some other Linux software component.
For example, you run the Linux command named ls (for list) “on” a Linux directory to see a list of files in the directory. You run the Linux command named rm (remove) “on” a Linux directory to remove the directory from the Linux file system.
To run a Linux command, you type in the name of the command, and any other parts of the command, such as options, and press the Enter key.
You can see an example of the Linux command that is used to create a new Linux user below. The useradd command is being run “on” the bthatcher user name to create this Linux user.
Linux Tips: Linux commands are run at the Linux command line prompt and this prompt is shown as   ]#  at the left of the command. You don’t type in the prompt, you type the Linux command at the right of the prompt.
Linux Tips: The Linux command prompt may also appear as:  ]$  or as another symbol, instead of # or $.
      ]#  useradd   -c   “Becky Thatcher”  bthatcher
This Linux command creates a new Linux user named bthatcher with the full name of “Becky Thatcher”. The -c (for comment) option is used with this command to add the full name as a comment to the Linux user name of bthatcher.
One of the easiest and best ways to get Linux training is to see Linux commands being run in Linux video tutorials. With this method - you see, hear and do.
With a Linux video tutorial, you see and hear how to run a Linux command and see and hear a description of the output of the command. You can also pause the video so you can run the Linux command yourself!