Git Log Viewing: log Command Parameters and Commit History Analysis

This article introduces the importance and usage of Git logs. Viewing Git logs allows you to understand commit records (who, when, and what was modified), project iteration trajectories, and also helps in locating issues. The basic command `git log` displays commit IDs, authors, times, and commit messages. Common parameters include: `--oneline` for simplified display, showing one commit per line; `-p` to display code differences (diff); `-n` to limit the number of commits (e.g., `-n 3`); `--graph` for graphical representation of branch merges; `--author` to filter by author, `--since`/`--before` to filter by time range; and `--color` for colored output. When analyzing logs, you can quickly pinpoint issues and understand branch logic. Clear commit messages (e.g., "Fix login button") can enhance collaboration efficiency. Mastering these parameters is key to efficient version control.