Changes
shnow accepts a keyword argsilentand returns the status of the command. It is not silent by default.envchanged toENVand now will not raiseKeyErroron dict access when keys don't exist but will returnNoneinstead.
sh now accepts a keyword arg silent and returns the status of the command. It is not silent by default.env changed to ENV and now will not raise KeyError on dict access when keys don't exist but will return None instead.