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Full Discussion: Control-break"ish" in awk
Top Forums UNIX for Dummies Questions & Answers Control-break"ish" in awk Post 302932078 by beca123456 on Monday 19th of January 2015 03:14:34 AM
Old 01-19-2015
Still not working !!!

Using your code:
input:
Code:
1|Bob
3|Bob
Ref|Bob
5|Rick
1|Rick
Ref|Rick

output:
Code:
1|Bob
3|Bob
Ref|Bob|*
5|Rick
1|Rick
Ref|Rick|*

I should get:
Code:
1|Bob
3|Bob
Ref|Bob|*
5|Rick
1|Rick
Ref|Rick

Let's me explain again with another example:
Code:
1|Bob
3|Bob
Ref|Bob
2|Rick
5|Rick
1|Rick
Ref|Rick
7|Paul
Ref|Paul

Here we have 3 groups "Bob", "Rick" and "Paul'.
* 1st group:
1st record, value of $1 is 1 (i.e. <4)
2nd record, value of $1 is 3 (i.e. <4)
=> as all $1 are <4, we can add "*" at the last record of the group (the one starting with Ref)

* 2nd group:
1st record of this group, value of $1 is 2 (i.e. <4)
2nd record of this group, value of $1 is 5 (i.e >4)
=> at least one value of the group is >4, the last record of the group (the one starting with Ref), must remain unchanged (no matter the value of $1 in the 3rd record of the group)

* 3rd group:
1st record of this group, value of $1 is 7 (i.e. >4)
=> the last record of the group (the one starting with Ref), must remain unchanged.

We should then obtain:
Code:
1|Bob
3|Bob
Ref|Bob|*
2|Rick
5|Rick
1|Rick
Ref|Rick
7|Paul
Ref|Paul

 

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWgawk | +--------------------+-----------------+ |Interface Stability | Volatile | +--------------------+-----------------+ NOTES
Source for gawk is available on http://opensolaris.org. Free Software Foundation Nov 3 1999 IGAWK(1)
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