Contributing

Why does vi Open vim? It stands for vi improved. How it works: vim looks for a config file at ~/. vimrc , if this…

What does 3 with a little 2 mean? An exponent refers to the number of times a number is multiplied by itself. For example, 2…

How do I check the connection between two Linux machines? For checking server connectivity you have 4 tools at your disposal. ping. This will check…

Can a process be both a client and a server? Yes, absolutely. You can do it with multiple threads, or with just a single thread…

How do I fix operating system not loading? Fix #1: Run System Restore from the disc Restart your computer and boot from the install disc.…

How can you realize AND and OR gate by CMOS NAND gate? To build an inverter from NAND, simply connect the two inputs of the…

Is hub and spoke the same as star topology? It is the same as a star topology in a network. A network hub is hardware…

What is the weight of a binary number? The binary weight of a positive integer is the number of 1’s in its binary representation. For…

Is Firebird a good database? Firebird is a relational and open source database that provides many SQL and ANSI features that are able to perform…

How do you grep the last occurrence? 6 Answers Print last occurence of x (regex): grep x file | tail -1. Alternatively: tac file |…