Friday, August 11, 2017

How to learn UNIX

UNIX is a family of computer operating systems that was first developed in the 1970s. 

UNIX has been under constant development ever since. UNIX provides a Graphical User Interface as Microsoft Windows operation system does thus making it easier for the user. However, more knowledge may be needed in cases not covered by a graphical program. UNIX has different versions although they have similarities, the most popular are GNU/LINUX, Sun Solaris, and MacOS X. The UNIX operating system is made up of several parts; The kernel, the shell and the programs. The best way to learn UNIX is to use it. Here are some steps that you can use to learn UNIX;

Get access to a UNIX system
This is the first step to learning UNIX. You can also set it up on your computer as it can run from a USB storage or on DVD. You can also access it by setting up a virtual system which is easy to use as you can cancel it anytime you want and start again. You can also try running Ubuntu on Microsoft windows [Windows 10] which give you the ability to run UNIX commands while still running Windows.

Get yourself some basic commands
This can be easily done by downloading basic commands from the internet. Also called ‘cheat sheets’ they help you to try out some of the basic UNIX commands before you make your own. Always take some time to try out and run the commands that you can get.

Learn how to use pipe and redirection features
Familiarise yourself with the concept of sending data from one command to the next, how to select data, how to print and understand the power of commands. Pipes facilitate the output of a command to be the input of another command redirection takes the output and writes it to a file.

Know the file permissions
Run commands to check your file details including file links, file size, owner, date made and a list of permissions, this enables you to know what to execute and how to do it.

Try scripting
Put commands in a file and make the file executable, this will help you to discover more options beyond simple commands. You can use scripts to run tests and generate an output based on the results of a test.

Read UNIX books
This provides comprehensive information on the structures and properties of UNIX on different levels, Beginner books will give you information on the introduction and basic commands after which you can proceed to more advanced stages.

Take a class and watch tutorials
You can also join an online class or watch video tutorials on video platforms like YouTube to get more knowledge on what to do in different cases. There are also platforms where people share their knowledge online in real time, you should also feel free to ask questions if you are stuck as there are people willing to help and don’t forget to have fun.

Thursday, October 27, 2016

Attain Your Lost Information By Computer Data Recovery Tips

Providing we own a computer I'm likely to suffer from data loss now and then. It may be inevitable especially when many malfunctions in the computer's disk drive occurs. This, however, shouldn't be a cause of alarm classes possible means by which personal computer data recovery can be executed.

Previous to we get to how we can certainly carry out a computer data recovery method, we first need to know areas on the hard drive that when damaged lead to a data loss. Seasoned computer troubleshooters point out several areas that lead to a complete info disappearance in a computer; the particular spindle motor, the read/write head drive, and BIOS system failure.

Spindle generator is a device in the disc drive that used to spin the magnetic disks typically where the computer system stores all data. For any data on the disks to get retrieved and used, often the disks need to be in continual revolution throughout the reading course of action. Upon failure of the spindle motor, it means that the magnets disks won't spin therefore data is trapped inside hard disk and can't be looked at.

The second way of data loss will be a failure in the read/write head drive in the laptop or computer hard disk. The read/write brain detects magnetism when the disc platters spin thus leading to easy access to data. The read/write head drive can cause failure due to some factors, brake dust particles causing interference between scalp and disk, a flawed actuator arm holding the top, accidental dropping of the disk drive or sudden power malfunction. Head drive failure is easily detected when a "1708 Crown error" appears on your tv screen whenever you boot up. This means an instant computer data recovery is required.

Next cause of data failure is usually when the Basic Input Production System or BIOS plan fails completely. The BIOS application is the software this checks whether all factors in the hard drive are functioning properly upon booting up. Often the BIOS app can fail to function properly when the disk controllers usually are faulty; the computer has incorrect jumper settings or if the interface cable for the hard disk drive gets messed up as well. This kind of faults mostly leads to BIOS failure.

The good news when this kind of failures occur is that the files on the hard disk is eventually left untouched and is easily retrievable. Computer data retrieval can be done employing suitable computer data recovery application. The method is tried and tested being very effective by many end users. It is also possible to consult the exact respective programmers of the computer software to guide you on how to go about putting your data.

So we should never find edgy when the computer doesn't work since we have ready laptop data recovery options we can test. It gets trickier as soon as the computer looses data by harmful viruses and unsolicited mail. Here we'll need to get a new technician involved to help with data recovery.