Android has its own init system with a special init.rc configuration file. This file uses its own syntax which, unlike shell scripts used in classical sysvinit, does not allow you to do everything you might need. Instead, it has its own (rather limited) set of actions that it can do (like mkdir, chmod, chown, etc). There is, however, exec keyword defined that should execute specified command (could be a shell script) but unfortunately, it is not implemented (I mean, the keyword is recognized by it does nothing). more ...