The eval command allows you to run the contents of variables as commands and can be very useful -- especially in scripts.

In our first tutorial on command line wizardry, we covered simple redirection and the basics of sed, awk, and grep. Today, we're going to introduce the concepts of simple variable substitution and ...

Why Would You Want to Set the PATH Variable? PATH is an essential environment variable on all Windows operating systems. It determines the way a system executes a program or command on your computer.

Learn how to set the PATH variable in macOS. The PATH variable is a file system environment variable that contains the location of commands and program files. In this article, you’ll learn how ...

If you're already using the Unix-like Cygwin, it's an easy hack to embed Cygwin's commands into your standard Windows comand prompt; if not, it might be worth checking out the free download.

Mathematical programming discriminant analysis models must be normalised to prevent the generation of discriminant functions in which the variable coefficients and the constant term are zero. This ...

The branch-and-bound method with the revised dual simplex for bounded variables is very effective in solving relatively large-size integer linear programming problems. This paper, based on the general ...