Very Computer

Hi:

How can I remove empty lines from a file using ed or edit?

For example, I'd like to convert file A to B using and editor:

        File A:
        evaluate ($min=2.2)  
        evaluate ($max=4.0)  

        evaluate ($peak=1.5)  

        evaluate ($npeaks=400)        

        File B:
        evaluate ($min=2.2)  
        evaluate ($max=4.0)  
        evaluate ($peak=1.5)  
        evaluate ($npeaks=400)        

Note: 's/^$//g' does not work.

----------------------
Sirano Dhe-Paganon
Joslin Diabetes Center
Harvard Medical School
One Joslin Place
Boston, MA 02215
Tel 617-735-1934

In ed or edit the following works
:g/^$/d

Declan

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Quote:>Hi:

>How can I remove empty lines from a file using ed or edit?

>For example, I'd like to convert file A to B using and editor:

>    File A:
>    evaluate ($min=2.2)  
>    evaluate ($max=4.0)  

>    evaluate ($peak=1.5)  

>    evaluate ($npeaks=400)        

>    File B:
>    evaluate ($min=2.2)  
>    evaluate ($max=4.0)  
>    evaluate ($peak=1.5)  
>    evaluate ($npeaks=400)        

>Note: 's/^$//g' does not work.

awk 'NF>0' infile > outfile

in vi, you can join one line to another with the J command
if you do that on a blank line, or on the line above it,
that would eliminate the blank line

I don't use ed or edit, but check the man page.

Chuck Demas
Needham, Mass.

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