yes, that's possible, but why don't you show the code you tested?

I modified my example and the result looks like the wanted...

while ( my $line = <DATA> ) {
    chomp $line;

    # remove the spaces from start of line
    if ( ! ( $line =~ s/^\s+// ) ) {
        print "\n" if $. != 1;
    }

    # remove spaces from end of line
    $line =~ s/\s+$//;
    print $line;
}

__DATA__
firstline54324563213612531436436463246324634
         secondlidfndsfdsfdsfd
         thirdlinedsfsdf   
firstline54324563213612531436436463246324634
         secondlidfndsfdsfdsfd
         thirdlinedsfsdf

[download]

Result:

$ perl guess.pl
firstline54324563213612531436436463246324634secondlidfndsfdsfdsfdthird
+linedsfsdf
firstline54324563213612531436436463246324634secondlidfndsfdsfdsfdthird
+linedsfsdf

[download]

In reply to Re^2: Appending lines starting with white space to the previous line by linuxer
in thread Appending lines starting with white space to the previous line by ashok13123

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