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[question] hard exercise, help needed

 
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Top Forums UNIX for Dummies Questions & Answers [question] hard exercise, help needed
# 1  
Old 09-20-2007
[question] hard exercise, help needed
Hello guys.

Well, on this exercise i need the average "chargeAmount" per hour (for each hour).

with this code :
Code:
cat getusagesummarywrongmatch | grep -iv MOU2GRTObject | cut -d'|' -f4,14 | grep -i  chargeamount | cut -d' ' -f2

Image

i got the fields that i need, then with the awk comand i took the 1st and 4th fields separated by ":" .
But i couldnt get the total and average of chargeamount for each hour.


Hope you guys can help me again Smilie

thanks in advance
# 2  
Old 09-20-2007
Let's hope this is not homework.

add the following "pipe" to the end your existing line of code
Code:
| awk -F':' '{cnt[$1]++; arr[$1]+=$NF  } 
  END {for (i in arr) { printf "%d %.2f\n",i, arr[i]/cnt[i]) }'

# 3  
Old 09-20-2007
cat getusagesummarywrongmatch | grep -iv MOU2GRTObject | cut -d'|' -f4,14 | grep -i chargeamount | cut -d' ' -f2 | awk
-F':' '{cnt[$1]++} {arr[$1]+=$4} END {for(i in arr) printf("Hour: %d Average: %.2f\n",i,arr[i]/cnt[i])}' | sort;

thanks a lot Smilie
Last edited by EnioMarques; 09-24-2007 at 09:20 AM.. Reason: worked!
 
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