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• In computer programming, a script is a program or sequence of instructions that is interpreted or carried out by another program rather than by the computer processor (as a compiled program is).

  Some languages have been conceived expressly as script languages. Among the most popular are Perl, REXX (on IBM mainframes), JavaScript, and Tcl/Tk. In the context of the World Wide Web, Perl, JBScript, and similar script languages are often written to handle forms input or other services for a Web site and are processed on the Web server. A JavaScript script in a Web page runs client-side on the Web browser.  

  In general, script languages are easier and faster to code in than the more structured and compiled languages such as C and C++ and are ideal for programs of very limited capability or that can reuse and tie together existing compiled programs. However, a script takes longer to run than a compiled program since each instruction is being handled by another program first (requiring additional instructions) rather than directly by the basic instruction processor.

• A script is sometimes used to mean a list of operating system commands that are prestored in a file and performed sequentially by the operating system's command interpreter whenever the list name is entered as a single command.