行を列データに変換するLinuxシェルスクリプト

#!/usr/bin/perl
use strict;

my @keynames = (
  'Avamar Hostname', 'Avamar Server Version','Node Type',
  'Gen4T ROC SN/WWN', 'EMC Hardware Health',
);

# Make a hash where the keys are the key names, and the values
# are the index number of the key. This will make sure each
# field of every record is stored and printed in the right order.
my %keys;
foreach (0 .. $#keynames) { $keys{$keynames[$_]} = $_; };

# String field lengths are hard-coded after examining the sample data.
#
# These could be auto-calculated at the cost of having two
# passes through the data, and keeping the max length of
# each field in a hash. The hash should be initialised
# (in the foreach loop above) with the lengths of the headers
# so they're at least that wide.
my $fmt = "%-20s  %-21s  %-23s  %-16s  %-19s\n";

my @record;

printf $fmt, @keynames;

while(<>) {
  chomp;
  # split the input line on two-or-more spaces or a tab.
  # I'm not sure if the input is tab or space separated,
  # this will work with either.
  my ($key,$val) = split /  +|\t/;

  if ($. > 1 && (eof || $key eq $keynames[0])) {
    printf $fmt, @record;
    @record=();
  };

  $record[$keys{$key}] = $val;
}

出力例：

$ ./row-to-col.pl input.txt  
Avamar Hostname       Avamar Server Version  Node Type                Gen4T ROC SN/WWN  EMC Hardware Health
server1.corpnet2.com  19.1.0-38              Single Node Gen4t-M2400  WARNING           PASSED
server2.CORPNET2.COM  19.1.0-38              Single Node Gen4t-M1200  WARNING           PASSED

注：各レコードの間に空白行が1つ以上ある場合は、処理が簡単になります。その後、段落モードで解析できます。そのために、入力データを生成するすべての項目を変更できる場合は、そうすることをお勧めします。もちろん、可能であれば変更してこの表形式を生成することもできます。