HEAD と HEAD の２個前を比較(^の数がn個前のnに対応) $git diff HEAD^^ HEAD Working Tree とHEADの３個まえを比較 $git diff HEAD^^^ ^^^は~3でもよい $git diff HEAD~3 HEAD と index を比較 $git diff --cached 比較対象のファイルを指定 $git diff HEAD…