title: Replacing a text at specified line number of a file using powershell
body: <p>IF there is one file for example test.config , this file contain work "WARN" between line 140 and 170 , there are other lines where "WARN" word is there , but I want to replace "WARN" between line 140 and 170 with word "DEBUG", and keep the remaining text of the file same and when saved the "WARN" is replaced by "DEBUG" between only lines 140 and 170 . remaining all text is unaffected.</p>