[Info-vax] Removing blank lines from text files

[Jon Pinkley]

On Friday, June 14, 2019 at 9:55:51 PM UTC-4, Bob wrote:
> Is there some simple DCL command, or a few commands, that I can use to remove blank lines from a file?
> 
> I can obviously write a small DCL script to read the file, and write the non blank lines, but I'm wondering if there is an easier way.
> 
> Thanks;
> 
> Bob

It depends what you mean by blank line.  If you mean lines with zero length, then 

$ search input /out=output "" /form=pass 

will write all lines that contain at least a single byte to the output (at least on Alpha 8.3), but it won't remove lines with only whitespace.

Andy Goldstein could probably provide a teco one-liner to do it.