my $line = do { local $/; <$fh> };
$line =~ s/\n*\n/ /g;

[download]

Or: 

my $line = do { local $/; <$fh> };
$line =~ tr/\n/ /s;

[download]

Or just: 

( my $line = do { local $/; <$fh> } ) =~ tr/\n/ /s;

[download]

In reply to Re^2: read file into 1 line string by jwkrahn
in thread read file into 1 line string by Anonymous Monk

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