cp ni.py ~/bin/nini [EXPR1] [EXPR2] ...Take lines from stdin as an iterator, and execute ni-expressions EXPR1, EXPR2 etc on this iterator. If the final result is a string, it is printed. Otherwise, the resulted is iterated over and printed line by line
ni -l [EXPR1] [EXPR2] ...
In line mode, the ni-expressions are applied to each line instead of to the iterator containing all lines.