You can strip out the values while moving them. From what you describe, I'd ignore the columns (unless it's possible for those key2= patterns to appear in other columns where you want to ignore them). So you could use something like this to get the value for key1, strip it out, and append it to the end of the line: 

open my $in,  '<', 'infile'  or die $!; # open input file
open my $out, '>', 'outfile' or die $!; # open output file
while(my $line = <$in>){
  chomp $line;                       # remove newline
  if( $line =~ s/key1=([^&\s]+)// ){ # capture value in $1 while 
                                     #   replacing with empty string
    $line .= " key1=$1";             # append key and value to line
  }
  print $out "$line\n";              # print line to output file
}
close $in;
close $out;

[download]

That will do one find/replace/copy, so you can repeat the if loop while changing the key?= to do multiple ones.

Aaron B.
Available for small or large Perl jobs and *nix system administration; see my home node.

In reply to Re^3: split, manipulate, join by aaron_baugher
in thread split, manipulate, join by jc.smith3

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