J-Shell

Grammar

    Program    := <commands>+ ;
    commands   := <ident | args> <args>;
               |  <ident | path> <args> <bin> <ident | path> <args>
    <bin>      := '|" | ">" | "<" | ">>" | "<<"
    <args>     := (<terminal>)*
    <terminal> := <ident | string | path>
    <ident>    := []+
    <string>   := "[]*"
    <path>     := .[]* | /[]*