using vi -c to remove empty lines

Shell Programming and Scripting
1

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. :slight_smile:

Thanks for your time.

2

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.

grep -E '[^   ]+$' filename
3

Try running the commands using two -c options on the command line:

vi -c "g/^$/d" -c "wq"   file2edit
4

agama wins the prize!
1 ABP. :cool:
Thanks!