Getting a text file rid of all superfluous blank lines
Matthew Saltzman
mjs at ces.clemson.edu
Wed Nov 30 13:20:59 UTC 2005
On Wed, 30 Nov 2005, Paul Howarth wrote:
> Paul Smith wrote:
>> On 11/30/05, Paul Howarth <paul at city-fan.org> wrote:
>>
>>>> Taking a text file, how can one eliminate at once all superfluous blank
>>>> lines?
>>>
>>> What is your definition of a "superfluous blank line"? Is that all blank
>>> lines, or all consecutive blank lines where the number is more than one?
>>>
>>> If it's the latter, you may find "more -s filename" to your liking.
>>
>>
>> Thanks, Paul. I mean "all consecutive blank lines where the number is
>> more than one". Furthermore, I mean how to delete those blank lines
>> from the file.
>
> $ more -s file > file.new
> $ mv file.new file
>
> Paul
Or better, "cat -s file > file.new" and avoid having to page through the
file.
--
Matthew Saltzman
Clemson University Math Sciences
mjs AT clemson DOT edu
http://www.math.clemson.edu/~mjs
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