How can I suppress feedback when calling vim with certain commands?

Question

I'm trying to automatically delete useless headers when calling vim from mutt. I've tried running vim with the following command.

vim +'0,/^$/g/^\(Cc\|Bcc\|Reply-To\): $/d' /tmp/test

However, I get the following feedback when it starts.

"/tmp/test" 11L, 60C
3 fewer lines
Press ENTER or type command to continue

For testing purposes, if I remove the range and g (i.e. 0,/^$/g), the command is as follows, and I do not get the additional prompt.

vim +'g/^\(Cc\|Bcc\|Reply-To\): $/d' /tmp/test

Why do I get the prompt for the first command? How can I suppress it?

Edit

I seem to only get the prompt when the command deletes three lines, e.g. when /tmp/test consists of the following.

To: Foo
Cc: 
Bcc: 
Reply-To: 

foo
bar

However, when there are only two lines deleted, I get no prompt, e.g. when /tmp/test consists of the following.

To: Foo
Cc: Bar
Bcc: 
Reply-To: 

foo
bar

Try adjusting the 'cmdheight' option before running the global command. — VanLaser, Oct 19, 2015 at 12:15
@VanLaser This works well. I do set cmdheight=2 before the command, then set cmdheight=1 after. I'd upvote if it were an answer. — Sparhawk, Oct 19, 2015 at 20:57
@VanLaser I actually quite like yours too, because it still notifies in case of error. silent (obviously) gives no indication if a command has failed. — Sparhawk, Oct 19, 2015 at 22:07

jamessan · Accepted Answer · 2015-10-19 12:40:48Z

4

Use :silent to suppress the output of the command.

vim +'silent 0,/^$/g/^\(Cc\|Bcc\|Reply-To\): $/d' /tmp/test

answered Oct 19, 2015 at 12:40

jamessan

10.6k2 gold badges35 silver badges52 bronze badges

Thank you; works well (+1). However, do you have any idea why I get the prompt for this command (my first question)? And why only when it matches thrice?
– Sparhawk
Oct 19, 2015 at 20:50
@Sparhawk As already mentioned in comments to your question, when the output exceeds the value of 'cmdheight' it causes the hit-enter prompt. Vim does this to ensure you see ask the output. Since you don't care about the output, :silent is the right way to avoid the prompt.
– jamessan
Oct 19, 2015 at 22:43

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