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Cat is a programming language that can be used to create scripts for text manipulation and file handling. It operates by concatenating input files together, which can be useful when dealing with large amounts of textual data or log files. In Cat, the primary operator is a vertical bar (|), which takes the output of one command and uses it as the input for another. This pipe-and-filter model makes it easy to chain commands together in order to achieve complex transformations on data without needing lots of temporary files. The language provides basic constructs like loops and conditionals, but its real strength lies in how it facilitates stream processing and organizing code into linear sequences that reflect manipulating text streams through simple commands or functions combined by pipes instead of needing more complex algorithms or control flow constructs like traditional programming languages have.

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