Extracting performance statistics from FTP session transcript
Assuming the "Output" section is stored in "filename.txt", and assuming you have GNU tools:

grep -oP '(?&lt;=\.\d\d)\d+\.\d\d(?=disconnect)' filename.txt


That's a perl regex meaning: prececeded dot and two digits, find some digits, a dot and two digits, followed by "disconnect". grep's -o option means "output only the matched text".