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Top Forums Shell Programming and Scripting Print certain lines based on condition Post 302843973 by ckwan on Friday 16th of August 2013 03:39:56 AM
Old 08-16-2013
awesome. Very powerful awk script command. Thanks for your sharing.

---------- Post updated at 02:39 AM ---------- Previous update was at 12:51 AM ----------

Thanks Don for your kind sharing. Btw, can you explain a bit on the highlighted part that I not understand.

Code:
awk '
function printlist(     i) {
        for(i = 1; i <= c; i++)
                printf("%s\n", l[i])
        print "" 
}
/^[[]/ {if(c > 2) printlist()   <<= if found first character is [ and c > 2 initialize the var c
        c = 0 
}
/./ {   l[++c] = $0              <<= can elaborate more on this?
}
END {   if(c > 2) printlist()   
}' listing

Thank You Very Much.
 

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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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