как извлечь строку из текста с помощью скрипта

пока цитировал строки Не строку и не содержит кавычки или сбежал цитаты:

$ perl -ne 'print "\n" while m!"([^"]+)"!g' maxwell.txt
the shell
simple

$ cat maxwell.txt
i have the following text

A shell script is a (script) written for "the shell", or command line interprete
r, of an operating system. The shell is [often] considered a "simple" domain-spe
cific programming language.

i need to print the strings surrounded by double quotes only using script?

Thanks!
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