standard input; stdin
Computing term for the default input stream, often abbreviated as stdin. Used in programming and command-line contexts.
The program reads data from standard input.
Redirect standard input to a file.
Standard output (stdout), the default output stream, contrasted with standard input.
Standard error (stderr), the default error output stream, distinct from standard input.
Compound of 標準 (standard) and 入力 (input), a direct translation of the English computing term 'standard input'.