Git: Commit ID

By Xah Lee. Date: . Last updated: .

One important concept is Commit ID. Every commit has a ID.

Commit ID is a 40 digits hexadecimal, for example: 3b6ea398cc2d69212b04c29f06b8d15c0af34e34.

List Commit ID

git log -3
show the last 3 commit id.

Note, in git commands that requires a commit id, you can usually use HEAD. It usually means the commit id of last commit. 〔see Git: What's HEAD〕