hg-commit:tldr:9ffba

The "hg commit" command is used in the Mercurial version control system to save changes made to your working directory to the repository—it creates a new changeset.

When you run "hg commit," Mercurial will open an editor where you can write a commit message explaining the changes you made. The commit message helps others (and yourself) understand the purpose of the changeset.

The command can also include additional options, such as:

• "-m" followed by a commit message directly in the command, which allows you to avoid opening an editor.
• "-A" to automatically include all changes in your working directory, even new files and deleted files. By default, Mercurial doesn't include these changes.
• "-u" or "--user" followed by your username to specify the author of the commit. By default, the value configured in your Mercurial configuration is used.
• "--amend" to modify the previous commit. This option is used to add additional changes to the previous commit rather than creating a new one.

Keep in mind that after committing, the changes become part of the repository's history and are saved permanently.