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Summing over specific lines and replacing the lines with the sum using sed, awk


 
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# 1  
Old 06-25-2012
Summing over specific lines and replacing the lines with the sum using sed, awk

Hi friends,

This is sed & awk type question.

I have a text file which has numbers spread all over the file. I want to sum the series of numbers whenever i find it and produce an output file with the sum. For example

###start of input text file ####
Code:
abc
def
ghi
1
2
3
4
kjld
random
text
occupies
some
1000
3000
400
again
some
random
text
900
100
whatever
is here
900
11
what

#####end of input file #########

The output should be

##start of output file ####
Code:
abc
def
ghi
10
kjld
random
text
occupies
some
4400
again
some
random
text
1000
whatever
is here
911
what

########### end of output file #################

So the output file is the same as the input file, except the series of numbers is replace by its sum.

I hope it makes sense. If not, please let me know any questions.

Kind Regards,

Last edited by kaaliakahn; 06-26-2012 at 01:28 PM.. Reason: code tags
# 2  
Old 06-25-2012
Try:
Code:
awk '!/^[0-9]+$/&&p{print s;s=0;p=0};!/^[0-9]+$/;/^[0-9]+$/,/^[0-9]+$/{s+=$0;p=1}' file

This User Gave Thanks to bartus11 For This Post:
# 3  
Old 06-25-2012
Code:
awk '/[^0-9]/{if(s)print s; s=0; print; next} {s+=$1} END{if(s)print s}' infile

This User Gave Thanks to Scrutinizer For This Post:
# 4  
Old 06-25-2012
bartus11 and Scrutinizer

Dude!

I am so grateful to both of you.

Warm Regards,
kaaliakahn

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