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Full Discussion: Sorting based on multiple delimiters
Top Forums Shell Programming and Scripting Sorting based on multiple delimiters Post 302519077 by rdcwayx on Tuesday 3rd of May 2011 02:32:28 AM
Old 05-03-2011
Quote:
Originally Posted by gimley
Hello,
I tested the file and what I get is the message
0 delimiters
followed by the full set of sample test data.
I checked the script abd the syntax shows that the files should be sorted as per number of delimiters.
What has gone wrong ?
I am enclosing the testdata as a zip file.
Many thanks
No problem I found.

If you run the awk in Solaris, please replace the command with nawk or /usr/xpg4/bin/awk
Code:
awk -F = 'NR==1{max=NF;min=NF}
         {max=(max>NF)?max:NF;min=(min<NF)?min:NF;a[NF]=(a[NF]=="")?$0:a[NF] ORS $0}
    END{for (i=max;i>=min;i--) {if (a[i]!="") print i-1 " delimiters" ORS a[i]}}' test |head -10

6 delimiters
pathan=inayat=khan=rashid=khan=sahebzadi=m
shiv=ram=tandale=ganesh=laxman=hirabai=m
5 delimiters
gore=bibi=sakina=irfanali=tayeba=f
jamadar=aves=ahmed=ashfaque=sherbano=m
ram=tandale=ganesh=laxman=hirabai=m
4 delimiters
kale=amita=bhanudas=shobha=f
lande=amit=chandrabhan=asha=m

---------- Post updated at 04:32 PM ---------- Previous update was at 04:25 PM ----------

Quote:
Originally Posted by kevintse
Try this:
Code:
awk -F= '{print NF, $0}' infile | sort -k1 -nr | awk '!d||$1!=d{d=$1; print d-1 " delimiters"}{print $2}'

Clever way.

little adjust (!a[$1]++) to look better, and -k1 is useless.
Code:
awk -F= '{print NF, $0}' infile | sort -nr |awk '!a[$1]++ {print $1-1 " delimiters" }{print $2}'

 

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LEARN ABOUT LINUX

igawk

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).

Free Software Foundation					    Nov 3 1999								  IGAWK(1)
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