start "Open Git Bash" "%SYSTEMDRIVE%\Program Files\Git\git-bash.exe"
start "Git Bash Open tail" "%ProgramFiles%\Git\git-bash.exe" -c "tail -f /c/Windows/win.ini"
start "" "%ProgramFiles%\Git\git-bash.exe" -c "echo 1 && echo 2 && /usr/bin/bash --login -i"
参考:
http://www.itkeyword.com/doc/9018080391155886x507/how-to-launch-git-bash-from-dos-command-line