Git Ignore Files: Other Exclusion Methods Besides .gitignore

Git, besides `.gitignore`, offers multiple ways to ignore files for different scenarios. `.git/info/exclude` is only for the local repository and its rules are not shared; directly add ignore rules here (e.g., personal IDE configurations). `git update-index --assume-unchanged` is used for tracked files to prevent Git from checking modifications (e.g., local configuration files). `--skip-worktree` is stricter, prohibiting Git from tracking sensitive files (e.g., passwords). `git rm --cached` can remove a tracked file from the repository while keeping it locally. Selection guide: Use `.gitignore` for daily general rules to share them, use `.git/info/exclude` for local personal needs, apply the above two for ignoring already tracked files, and use `git rm --cached` to remove files. Mastering these allows flexible management of the tracking scope, avoiding repository bloat or information leakage.