Pipe the output into awk instead of dumping it into "rip.txt...
Code:
awk -F ":" '{print $2}' rip.txt
Output
Code:
00 90 FB 23 2F 9D B8 AC 6F 13 D1 91 08 00 45 00
00 4F D2 63 40 00 40 06 6F B2 0A 40 67 94 B8 69
CE 55 F0 02 00 19 63 AE 3C 2D 5F A7 47 C0 80 18
00 2E EA 4C 00 00 01 01 08 0A 5D C6 F2 33 22 BB
66 F3 52 43 50 54 20 54 4F 3A 3C 33 37 33 36 31
38 37 37 40 71 71 2E 63 6F 6D 3E 0D 0A