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awk to format an output

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# 1  
Old 05-27-2011
MySQL awk to format an output

awk experts,

I have in put file with time stamp followed by "," separated data. same patern continues. The output need time stamp in first columns and data total in 2nd columns.

Input file

T 9:15
T 9:30

T 9:15,11
T 9:30,10

Select the time stamp and use it for each line until next time stamp. Total is the total of "d" lines for next two columns.
Moderator's Comments:
Mod Comment
Please use code tags when posting data and code samples!

Last edited by vgersh99; 05-28-2011 at 01:39 AM.. Reason: once again - please use code tags!
# 2  
Old 05-27-2011
If you don't care about the order of the output lines:
awk -F, '/^T/{x=$0}/^d/{a[x]+=($2+$3)}END{for (i in a){print i","a[i]}}' file

This User Gave Thanks to bartus11 For This Post:
# 3  
Old 05-28-2011
awk -F, '/^T/{h=$0} /^d/{m+=$2+$3} /^e/&&m{print h FS m;m=0}' infile

# 4  
Old 05-30-2011
awk -F, '/^T/{h=$0} /^d/{m+=$2+$3} /^e/{print h FS m;m=0}' infile

# 5  
Old 05-30-2011
&&m is so that if there is more than one line that starts with 'e' the line does not get printed more than once.. If that never happens it can be left out.
This User Gave Thanks to Scrutinizer For This Post:
# 6  
Old 05-31-2011
bartus11, Your code gets me good results but it prints in reverse. Here is my data again:

Fri May 13 10:29:16 2011
Fri May 13 10:39:16 2011
Fri May 13 10:49:16 2011

Expected output:
Fri May 13 10:29:16 2011,4.4
Fri May 13 10:39:16 2011,3.3
Fri May 13 10:49:16 2011,5.0

In words: Each line should have time from the line before sd line for first field. 2nd field is total of 2nd and 3rd columns of all sd lines between time line. Select only sd lines.
summary: time,total

Last edited by Franklin52; 06-02-2011 at 11:42 AM.. Reason: Please use code tags when posting data and code samples!
# 7  
Old 05-31-2011
If perl is okay, then you can use the following code.

perl -F, -lane 'if($#F == 0){$time=$_}else{$hash{$time}+=$F[1]+$F[2] if($F[0]!~/ed/)} END{print $_.",".$hash{$_} for sort keys %hash}' d
Fri May 13 10:29:16 2011,3.4
Fri May 13 10:39:16 2011,3.3
Fri May 13 10:49:16 2011,5

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