How do I overwrite the 7th, 8th and 9th column of the text file with new values? What can I use?
ATOM 1 N ASN A 1 12.844 -5.008 -17.071 1.00 0.00 N
ATOM 2 CA ASN A 1 12.377 -4.399 -15.793 1.00 0.00 C
ATOM 3 C ASN A 1 12.631 -2.888 -15.803 1.00 0.00 C