A plain text file is one of the most common ways to store typed data on a computer. It’s not only very simple to create a text file but also incredibly easy to edit one because it can be done using something as simple as Windows Notepad. A text file is also a universal format meaning it’s readable on multiple platforms including Windows, Mac, Linux, phones, tablets, and pretty much everything in between.

If you have text files that you need to read through or have merged several text files into one to make things easier, it makes sense to remove any lines of text that are duplicates of one another. You could manually remove all the duplicates yourself but it’s much easier to let the process be handled automatically.

Here we show you a number of different ways in which you can get duplicate lines removed from your text files.
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Do you normally take note of the security warning messages when you run a file on your Windows computer or when it prompts you to allow the program to make changes from the User Account Control window? To be honest I have never cared about them because I know that the file will be safe as long as I download it from the official website. For example, I download Firefox web browser from www.mozilla.com and not from some free file hosting websites such as mediafire where the uploader is able to tamper the file with some malicious code.

While I was looking to purchase SSL certificates few weeks ago, I noticed another certificate called code signing. Basically code signing certificate are meant for software to proof that the software comes from the author and not tampered or modified. If you use a hex editor or resource editor to change anything on a signed file, it would instantly lose the digital signature. There are two ways to see if the file is digitally signed or not.
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I received a notification from our Malaysian electricity company that they will temporarily cut the power supply for 9 hours next week on my day off from work. Staying at home without the electricity for 9 hours is nearly impossible for me because I can’t watch TV or use the computer, no ceiling fan or air conditioner when the weather is so terribly hot nowadays. Moreover, even if I can tolerate it, my baby definitely can’t. The only option is to get out of the house and go to my parents house or the shopping mall.

Although they mentioned 9 hours of power shut down, I believe that the stated period is the maximum time and the power could probably be restored much earlier. I wanted to have a way to get notified when the power supply comes back so that I can go back home instead of being outside for the whole 9 hours. I believe there are software that I can use do to this but my UPS battery backup cannot last more than 2 hours. So using the computer to detect when the power is restored and notifying me is definitely out of the question. Fortunately I managed to figure out a solution which I can get a SMS text notification when my home electricity supply is restored.
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