How to replace the bulk of this form of sentence?

There are a lot of abc.xml file format like this sentence:
the use of “ls-al” command.

I would like to use a tool or script to replace the volume:
use ls-al .

but abc.xml not affect the other's sentences with quotation marks, such as the following sentence will not be in quotation marks a replacement:
click the “start” button.

that deals only with “xxx” format command, to replace xxx , in quotation marks can not change the content.