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This is an attempt to use Eiffel to write shell scripts. Safe shell scripts are not that easy to write, most of them happily continue in case of errors. So why not use Eiffel to it better? The idea is to write shell scripts the jQuery way. To see how this works. Examples: ls ("*.html").grep ("whatever").words (agent ...) ls (<<"system/test.inc", "modules/test.inc">>).each (agent (a_path_name: STRING): BOOLEAN do ... end) State of the code: quite messy. I'm just experimenting at the moment. For example why do I have JRS_LINES_INPUT_ITERATOR and JRS_LINES_OUTPUT_ITERATOR as well as JRS_STRING_ITERATOR? Possibly because the JRS_LINES_INPUT_ITERATOR allows for not all lines to be read. But doesn't that mean I should get rid of JRS_STRING_ITERATOR? Perhaps rename JRS_LINES_OUTPUT_ITERATOR to JRS_LINES_ITERATOR to make clear this is a class that iterates over lines (strings). JRS_LINES_OUTPUT_ITERATOR should inherit from JRS_ITERATOR and be renamed to JRS_LINES_ITERATOR. The each function should be as from JRS_ITERATOR, the each that gives iterator as parameter should be called each2.