Dave Burns wrote:
>  so I piped it to head and it bombs:
> 
>   ruby -rubygems excelparse.rb stuff.xls|head
>  Row: 0 Cell: 0> Dispapp
>  Row: 0 Cell: 1> Iprc
>  Row: 0 Cell: 2> UH tag
>  Row: 0 Cell: 3> Weight
>  Row: 0 Cell: 4> Tags removed
>  Row: 0 Cell: 5> Disk removed or wiped
>  Row: 1 Cell: 0> 80118
>  Row: 1 Cell: 1> 1173
>  Row: 1 Cell: 2> 961SU
>  Row: 2 Cell: 0> 80118
>  excelparse.rb:19:in `write': Broken pipe (Errno::EPIPE)

The "head" command reads and prints the first 10 lines of input (by 
default), then closes its input and exits.

Your script is thus having it's output stream closed which it isn't 
expecting.  The broken pipe is to be expected.

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