Sharing Linux: September 2015

Thursday, September 24, 2015

How to install Windows XP in Ubuntu Virtualbox (step by step for dummies)

In this post, I'm going to share on how to install Windows XP in Ubuntu Virtualbox. If you don't have Virtualbox installed on your system, visit my old post on how to do this .

Setting up Virtualbox

1) Run Virtualbox click "NEW" and set new operating system details which include Name, Type and Windows Version. You can check Windows CD sleeve for version type .

Create new Operating System

2) Set the memory size allocation . and click "Next".

Set Memory size allocation

3) Create a Virtual hard drive .

Create a virtual hard drive.

4) Store it dynamically on your system.

Dynamically allocated

5) Choose the Hard drive size.

6) Then Click "Create" .

7) Go to "Settings"> "Storage" and click live CD/DVD. Then set Virtualbox to use host system CD/DVD ROM.

8) Then "Run" Windows XP .

Windows XP Installation

9)Press "Enter" to continue.

Enter to proceed

10) Accept the agreement by pressing "F8"

Press F8 to accept

11) Choose the unpartitioned disk space that you have configured earlier on Virtualbox.

12) Format the disk either using NTFS or FAT file format and press "Enter" to proceed . The system will then be formatted and rebooted.

Format NTFS or FAT file format

13) Choose the language and keyboard layout.

Choose language and keyboard layout

14) Set your name and organization.

Set name and organization

15) Key in the "CD -key" given from the CD case sleeve.

CD Key

16) Set the "Computer Name" .

Set Computer Name

17) Set the time and date.

Set Date

Set Time

18) Choose "Typical settings" and click "Next"

Typical settings

19) Turn on the Automatic Updates .

Turn on the automatic updates

20) Activate Windows

21) Register the system with Microsoft.

22) Set user account profile that can use the computer .

23) Enjoy your newly installed Windows XP. You are suggested to install the Guest Addition version to get more enhance and comprehensive experience.

Saturday, September 19, 2015

Linux Bash Shell Tutorial: How to manage background and foreground jobs in Linux terminal.

In this post, I'm going to share on how to manage background and foreground jobs in Linux terminal. Before I go into details, lets look at some jobs basic terminology .

Jobs are processes that running in a particular shell .Many jobs can run in the shell at once.Only one job can be active in the terminal at once .However many jobs can be executed in the background which known as Background Job.The active job in the current terminal is call Foreground Job .

Tutorial Content List

Running jobs in background .
Listing Jobs: Listing your jobs.
Suspending Jobs: Suspending a job to do something else.
Background Jobs: Having jobs work in the background.
Foreground Jobs: Putting jobs in the foreground.
Terminating Jobs: Stopping jobs before they're finished.

1)Running jobs in the background .

To run command in the background run

Running jobs in the background

Once you run the job in the background, the terminal will assign a job id and a process number respectively. job id is the number in the bracket[] followed with process number

2)Listing Jobs.

run "jobs" command to check the jobs status.

jobs status

NOTE: the plus(+) sign shows which is the latest job executed in the terminal and the minus(-) sign shows the second latest job that was executed in the terminal.you can access the specific job by referring the job id .

3)Suspending Jobs.

To suspend active job in the terminal, press "CTRL-Z"

CTRL-Z

Once suspended, the job status will show as "stopped" . Now you you can choose to run the job either in the foreground or in terminal background.

4)Background Jobs .

To put the recent executed job in the background, run "bg" command. This command will put the last executed job in the background (in other words the job with the plus(+) sign .

Background jobs

If you want to run specific job id in the background, use "bg" command followed with "%" and the job id number .

Running job id 1 in the background

5)Foreground Jobs.

To put the recent executed job in the foreground, run "fg" command. This command will put the last executed job in foreground (in other words the job with the plus(+) sign .

Foreground jobs

On executing the command, job with id 3 is shown in the terminal as it was the latest job executed in the terminal.

to put a specific job id on the terminal, use "fg" command followed with "%" and the job id .