Linux Classes

Linux Classes

Linux Check System Type Hardware

Basic Linux Command Example: 

 

Linux Check System Type Hardware.

 

   The example below use lshw command on Linux to check system type hardware information.  To execute the lshw command and start check system type you must have root privileges and the most important thing that the Linux lshw command install on your system.

 

Check system type example 1:

 

1.  Open the shell terminal and use su - command to gain privileges as root use (super user)

[fedora10@fedora10 ~]$ su -

Password:


Linux Create User With Full Name

 

Linux Create User With Full Name.

 

   If you like to adding user along with his or her full name, execute adduser command with -c option.  The example below show the adduser command example need to execute in order to create user with full name on Linux system.

 

User with full name

 

1.  login to the system and execute su command to gain root user privileges.


Linux Create User

 

Linux Create User Account Step by Step Example.

 

   The Linux create user account step by step example below use useradd command to demonstrate how to create user account on Linux operating system.  The useradd command only can be execute by root user and user that have sufficient privilege to create user on Linux system.  The step by step below begin with the su command to make sure that we have the privileges to create user on the Linux system.

 


Rename Linux Files

 

Rename Linux Files.

 

   How to rename Linux files? The example below show step by step to rename Linux files using mv command on Linux operating system. 

 

Rename Linux Files example

 

1.  Locate and list Linux file to be rename using ls command.

list Linux file to be rename

[linux@fedora11 ~]$ ls


BAD PASSWORD: it is based on a dictionary word

Basic Linux Command Example: 

 

BAD PASSWORD: it is based on a dictionary word.

 

   The example below show that the BAD PASSWORD: it is based on a dictionary word message appear when we try to change current Linux password on Linux Fedora system.  The message appear when we try to use the dictionary base word as password.

 

BAD PASSWORD based on dictionary word

 

When we try to change password current password to fedora we get BAD PASSWORD: it is based on a dictionary word message, and we decide to change the password to something little harder (strong password) to 'f3d0r4' but the system still give us the BAD PASSWORD: it is based on a dictionary word message..

 

use 'fedora' and 'f3d0r4' as example...


BAD PASSWORD: it is too simplistic/systematic

Basic Linux Command Example: 

 

BAD PASSWORD: it is too simplistic/systematic.

 

   Have you ever get BAD PASSWORD: it is too simplistic/systematic message when you try to change password on your Linux system using passwd command.  The command example below show the example of BAD PASSWORD: it is too simplistic/systematic message and the step need to be taken to make sure that the message did not appear again.  

 

BAD PASSWORD

 

Issue the passwd command to change your current password, key in your current password... then to change to new password, just key in '123456' as our new password...

you may get error that look like on the command example below... this is because the password that we key in... even thou its 6 character long... but it still too simple to guess and systematic because it just an keyboard sequence...


Linux Change Password

Basic Linux Command Example: 

 

Linux Change Password.

 

   The Linux change password command example below show how to change password for user, change root password the password for root user and change password for other user in the system.  In order to change password on Linux system, the Linux change password example below use the passwd command.

 

Change Password

 

If you log on into Linux system, and you want to change password ( your own user password)... just issue password command as show on example below.

Linux Change Password

[linux@fedora11 ~]$ passwd


Linux User and Group Management

Basic Linux Command Example: 

 

Linux User and Group Management.

 

   Step by step Linux command example and article on Linux user management and Linux group management.

 

    •   Linux passwd command example:

           1. - Linux passwd command manual - update a user's authentication tokens(s)


Check Kernel Version

Basic Linux Command Example: 

 

Check Kernel Version using Linux uname Command.

 

   The Linux command example below show how to check kernel version on your Linux machine.  The uname command is use to print out system information on Linux machine and on the example below we use the uname command with -r option (print kernel release) to check kernel version that is currently use by the Linux machine.

 

Linux check kernel version example:

 


null

Basic Linux Command Example: 

 

Get help on Linux null Command.

 

   The command example below show how to get null ( : ) command manual or help on Linux null command using shell command.

 


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