Hi, I have data in a string with multiple lines opened for reading in a command line file handle . I want to join lines starting with a pattern until it hits the same pattern at the End . Below is my data . I want to combine the lines starting with array in to a single line until it hits the pattern starting with array and then when it finds the next array , It should combine all the lines and so on until End of String . The New O/P should look like this ... 
array A physicaldrive 2C:1:1 port 2C:box 1:bay 1 SAS 1 TB OK physicald
+rive 2C:1:2 port 2C:box 1:bay 2 SAS 1 TB OK
array B physicaldrive 2C:1:3 port 2C:box 1:bay 3 SAS 1 TB OK physicald
+rive 2C:1:4 port 2C:box 1:bay 4 SAS 1 TB OK

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 data
array A
physicaldrive 2C:1:1 port 2C:box 1:bay 1 SAS 1 TB OK
physicaldrive 2C:1:2 port 2C:box 1:bay 2 SAS 1 TB OK
array B
physicaldrive 2C:1:3 port 2C:box 1:bay 3 SAS 1 TB OK
physicaldrive 2C:1:4 port 2C:box 1:bay 4 SAS 1 TB OK
array C
physicaldrive 3C:1:5 port 3C:box 1:bay 5 SAS 1 TB OK
physicaldrive 3C:1:6 port 3C:box 1:bay 6 SAS 1 TB OK
array D
physicaldrive 3C:1:7 port 3C:box 1:bay 7 SAS 1 TB OK
physicaldrive 3C:1:8 port 3C:box 1:bay 8 SAS 1 TB OK
array E
physicaldrive 4C:2:1 port 4C:box 2:bay 1 SAS 1 TB OK
physicaldrive 4C:2:2 port 4C:box 2:bay 2 SAS 1 TB OK
array F
physicaldrive 4C:2:3 port 4C:box 2:bay 3 SAS 1 TB OK
physicaldrive 4C:2:4 port 4C:box 2:bay 4 SAS 1 TB OK
array G
physicaldrive 5C:2:5 port 5C:box 2:bay 5 SAS 1 TB OK
physicaldrive 5C:2:6 port 5C:box 2:bay 6 SAS 1 TB OK
array H
physicaldrive 5C:2:7 port 5C:box 2:bay 7 SAS 1 TB OK
physicaldrive 5C:2:8 port 5C:box 2:bay 8 SAS 1 TB OK
array I
physicaldrive 6C:3:1 port 6C:box 3:bay 1 SAS 1 TB OK
physicaldrive 6C:3:2 port 6C:box 3:bay 2 SAS 1 TB OK
array J
physicaldrive 6C:3:3 port 6C:box 3:bay 3 SAS 1 TB OK
physicaldrive 6C:3:4 port 6C:box 3:bay 4 SAS 1 TB OK
array K
physicaldrive 7C:3:5 port 7C:box 3:bay 5 SAS 1 TB OK
physicaldrive 7C:3:6 port 7C:box 3:bay 6 SAS 1 TB OK
unassigned
physicaldrive 7C:3:7 port 7C:box 3:bay 7 SAS 1 TB OK
physicaldrive 7C:3:8 port 7C:box 3:bay 8 SAS 1 TB OK

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The Code that I tried to implement didn't work. 
while (my $row =~ <$fd>) {
         $row =~ /^$/ and next;
        $row =~  s/[,|)|(]//g;
        chomp $row;
        next if  $row =~ /^Smart/g;
        $row =~ s/^\s+//;
        my @temp;
        my $counter;
        if($row =~ /^array/) {
          push @temp,$_;
          next unless ($row =~ /^array/);
       }
## Aim is to have the resulting O/P Captured in $row .

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In reply to Join multiple lines in a string based on regex. by pr33

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