You can create your own macro variables, change their values, and define their scope. You can define a macro variable within a macro, and you can also explicitly define it as a global variable, by ...

When you define macro variables, you can include macro functions in the expressions to manipulate the value of the variable before the value is stored. For example, you can use functions that scan ...

When you installed Linux, you installed a lot of cool programs, many of which you use every day. At the same time hundreds of little utilities also got installed, simply because they were required by ...