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using vi -c to remove empty lines

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# 1  
Old 08-17-2010
using vi -c to remove empty lines
Hello:

I searched here for "vi -c" but found no hits.
How can I use vi -c to remove ALL empty lines, regardless of how many?

I tried
<code>
vi -c ":g/^$/d | wq" filename
</code>
but I have to run it several times.

This is NOT homework. Smilie

Thanks for your time.
Last edited by Habitual; 08-17-2010 at 09:48 PM..
# 2  
Old 08-17-2010
If you just want to remove empty lines, you can simply use grep.
The following one liner removes all empty lines(those contains spaces, tabs, or nothing) in a file.
Code:
grep -E '[^   ]+$' filename

# 3  
Old 08-17-2010
Try running the commands using two -c options on the command line:

Code:
vi -c "g/^$/d" -c "wq"   file2edit

# 4  
Old 08-17-2010
agama wins the prize!
1 ABP. Smilie
Thanks!
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