Käskyputket

Käskyputket is a Finnish term that translates to "command pipes" or "command tubes." It refers to a method of executing commands in a Unix-like operating system where the output of one command is directly fed as the input to another command. This is achieved through the use of the pipe character, represented by the vertical bar symbol "|".

The primary function of käskyputket is to enable the chaining of simple, single-purpose commands to perform more complex tasks. Instead of writing a single, intricate program, users can combine existing utilities that each perform a specific part of the overall operation. For example, one might use käskyputket to list files, filter them based on a pattern, and then count the results.

This technique is fundamental to shell scripting and command-line operations in Unix-like environments. It promotes modularity and reusability of existing tools. By understanding and effectively utilizing käskyputket, users can significantly enhance their productivity and the power of their command-line interactions. It is a core concept in Unix philosophy, emphasizing small, well-defined tools that work together.