argv[1] = <^J^J^J> argv[1] = <++^J++> argv[1] = <> argv[1] = <^J^I > argv[1] = <abc> argv[1] = <^M^[^Gabc> argv[1] = <hello,> argv[2] = <world> argv[1] = <hello, world> argv[1] = <> argv[1] = <$hello, world> argv[1] = <hello, $world> argv[1] = <hello, "world"> argv[1] = <hello, $"world"> argv[1] = <hello, $"world"> argv[1] = <$hello, chet> argv[1] = <hello, chet> ok 'abcd' 'abcd' \'abcd\' \'abcd\'