Convert awk line into perl Post: 302893489

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Top Forums Shell Programming and Scripting Convert awk line into perl Post 302893489 by numele on Wednesday 19th of March 2014 01:27:57 PM

03-19-2014

Registered User

I made some updates to the script and it works, may not very beautiful, but it does what I need to look at the first and second line after the string match.

Code:

foreach my $host (@HOST){
my $out_fh = "$CONFIG_DIR/$host";
open (FILE, "<$out_fh") or die "Can't open $out_fh";
     my @lines = <FILE>;
     my $lines; my $i;
     for $i(0..$#lines) {
        next unless $lines[$i] =~ /$loopback/;
           my $a = $i + 1 < 0 ? 0 : $i + 1;;
           my $b = $i + 2 < 0 ? 0 : $i + 2;;
             for $i($a) {
                if ($lines[$i] =~ /ip address/) {
                   my ($out) = (split / /, $lines[$i])[4];
                   $out = (split /\//, $out)[0];
                   print "$out\n";
                }
              }
             for $i($b) {
                if ($lines[$i] =~ /ip address/) {
                   my ($out) = (split / /, $lines[$i])[4];
                   $out = (split /\//, $out)[0];
                   print "$out\n";
                }
              }
      }
close (FILE);
}

numele

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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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