hi,

I am very new to python and thanks for your support.

I am trying to write a program to read all the .DAT files in the given folder and its sub folders.

Then in each of the .DAT file, I want to replace a perticular string - this string appears within first 10 lines in the file.

For example: The files have below string on line 4 or 7.
Name : TESTNAME

I want to update (append) the name with the filename. The output is like
Name : FILENAME_TESTNAME
(FILENAME is the name of the file without .DAT extension)

any help... thanks.