lähettökoodi

Läksiökooodi, often translated as "exit code" or "return code" in English, is a numerical value that a process or program returns to its parent process or the operating system upon completion. This value indicates the success or failure of the executed task. By convention, a läksiökooodi of 0 signifies successful execution, while any non-zero value typically indicates an error or abnormal termination.

The specific non-zero läksiökooodi can provide more detailed information about the nature of the error. For instance, different error conditions might be assigned distinct codes, allowing the calling process to take appropriate action based on the type of failure. Standardized error codes exist for common issues, and individual applications may define their own specific codes for internal error handling.

Operating systems and scripting languages heavily utilize läksiökooodi. Shell scripts, for example, can check the läksiökooodi of a command to determine if it ran successfully before proceeding to the next step. This enables robust automation and error checking in complex workflows. When a program crashes or encounters an unrecoverable error, it usually returns a non-zero läksiökooodi. Understanding and utilizing läksiökooodi is fundamental for debugging and creating reliable software.