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Full Discussion: simplifying awk
Top Forums Shell Programming and Scripting simplifying awk Post 302089924 by sil on Thursday 21st of September 2006 11:49:38 AM
Old 09-21-2006
simplifying awk

tcpdump -nr testdump|awk '!/:/;gsub(/^[ \t]+|[ \t]+$/,""){print $3};a!~$0;{a=$0};{print $3};!/length/;/./;!/11\:/;!/8 7 6 5 4 3 2 1/;!/UDP/{b[i++]=$0} END {for (j=i-1; j>=0; ) print b[j--] };{for (i=NF; i>0; i--) printf("%s ",i);printf ("\n")}'

*NOTE IN j>=0 the ; ) was given a space since a smiley is showing up...

Parses out a tcpdump file, removes trailing lines, ignores length, 8 7 6 5 4 3 2 1, udp, sorts the data (uniquely), reverses the data (TAC), etc...

Can anyone think of a simplified method of doing so Smilie
 

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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). Free Software Foundation Nov 3 1999 IGAWK(1)
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