Implement a write-ahead log (WAL) key-value store that persists data to disk and recovers from crashes. The…

Implement a write-ahead log (WAL) key-value store that persists data to disk and recovers from crashes. The…: a task in termgrade-bandcentral-gemma4-31b-bash: TermGrade Band-Central: the 151-task selection and its splits (Harbor dataset). All commands return exit code 0 on success. Non-existent…

The task

All commands return exit code 0 on success. Non-existent commands or malformed arguments should exit with code 1 and print nothing to stdout (may print to stderr).

Part of ai-and/termgrade-bandcentral-gemma4-31b-bash.