sum from one variables associated for other 1

[meels]

Hello,

I have the following file
210.255.0.1 10.0.0.101 70
210.255.0.2 10.0.0.103 71
210.255.0.2 10.0.0.105 72
210.255.0.1 10.0.0.115 73
210.255.0.1 10.0.0.105 74
210.255.0.3 10.0.0.105 75
210.255.0.2 10.0.0.112 76
210.255.0.1 10.0.0.111 77

I need to get the for each variable ($1) the corresponding sum on $3

As follows

Total no'' of bytes for 210.255.0.1 = 70+73+74+77=294
Total no'' of bytes for 210.255.0.2 = 219
Total no'' of bytes for 210.255.0.3 = 75

I am new to awk and beginner in programming.

Thanks in advance,
meels

 

[vgersh99]

nawk -f meels.awk file

{
   arr[$1] +=$3
}

END {
   for (i in arr)
      printf("Total no'' of bytes for %s = %d\n", i,arr[i]);
}

vlad
+----------------------------+
| #include<disclaimer.h> |
+----------------------------+