git compare commits code example

Example 1: github compare commits

github.com/<username>/<repo_name>/compare/<commit1>...<commit2>

Example 2: git diff two commits

-> git diff 0da94be  59ff30c > my.patch
-> git apply my.patch

Example 3: git diff two commits one file

$ git diff HEAD^^ HEAD main.c
$ # show diff between HEAD(current commit) and HEAD^^(two commits back) for main.c

Example 4: how to compare two commits in git

$ git diff 012345..abcdef

Example 5: make diff git as commit

A simple way to do it is:

create and checkout branch tmp at branch_a (git branch tmp branch_a && git checkout tmp)
git reset --soft branch_b
git commit
that commit must have all the diff