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Top Forums Shell Programming and Scripting Summing over specific lines and replacing the lines with the sum Post 302666627 by kaaliakahn on Thursday 5th of July 2012 12:48:08 AM
Old 07-05-2012
Summing over specific lines and replacing the lines with the sum

Hi friends,

This is sed & awk type question. It is slightly different from my previous question.

I have a text file which has numbers spread all over the file. I want to sum the series of numbers (but no more than 10 numbers in series) 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
5
6
7
8
9
10
11
12
13
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
55
36
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 (where series consists of ten or less consecutive numbers) is replace by its sum.

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

Kind Regards,
 

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DEBCONF-SET-SELECTIONS(1)					      Debconf						 DEBCONF-SET-SELECTIONS(1)

NAME
debconf-set-selections - insert new default values into the debconf database SYNOPSIS
debconf-set-selections file debconf-get-selections | ssh newhost debconf-set-selections DESCRIPTION
debconf-set-selections can be used to pre-seed the debconf database with answers, or to change answers in the database. Each question will be marked as seen to prevent debconf from asking the question interactively. Reads from a file if a filename is given, otherwise from stdin. WARNING
Only use this command to seed debconf values for packages that will be or are installed. Otherwise you can end up with values in the database for uninstalled packages that will not go away, or with worse problems involving shared values. It is recommended that this only be used to seed the database if the originating machine has an identical install. DATA FORMAT
The data is a series of lines. Lines beginning with a # character are comments. Blank lines are ignored. All other lines set the value of one question, and should contain four values, each separated by one character of whitespace. The first value is the name of the package that owns the question. The second is the name of the question, the third value is the type of this question, and the fourth value (through the end of the line) is the value to use for the answer of the question. Alternatively, the third value can be "seen"; then the preseed line only controls whether the question is marked as seen in debconf's database. Note that preseeding a question's value defaults to marking that question as seen, so to override the default value without marking a question seen, you need two lines. Lines can be continued to the next line by ending them with a "" character. EXAMPLES
# Force debconf priority to critical. debconf debconf/priority select critical # Override default frontend to readline, but allow user to select. debconf debconf/frontend select readline debconf debconf/frontend seen false OPTIONS
--verbose, -v verbose output --checkonly, -c only check the input file format, do not save changes to database SEE ALSO
debconf-get-selections(1) (available in the debconf-utils package) AUTHOR
Petter Reinholdtsen <pere@hungry.com> 2011-06-22 DEBCONF-SET-SELECTIONS(1)
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