busybox supports a superset of POSIX/ SUSv4 sh syntax, including some common misconceptions bashisms to ease porting - but only the SUSv4 subset is 'guaranteed' ([[ ...]] is always wrong).
busybox supports a superset of POSIX/ SUSv4 sh syntax, including some common misconceptions bashisms to ease porting - but only the SUSv4 subset is 'guaranteed' ([[ ...]] is always wrong).