Put blow line in your rc file ( e.g ~/.bashrc ~/.zshrc )

function pbvim (){
  readonly pbvim_tmp_file=./.pbvim.tmp

  pbpaste | vim - +"saveas $pbvim_tmp_file"
  cat "$pbvim_tmp_file" | tr -d "\012"| pbcopy

  rm -f "$pbvim_tmp_file"
}

ccc/pbvim at master · YumaInaura/ccc

And restart your shell.

pbpaste | vim -

But in above pattern VIM has no filename so can not save edit.

pbpaste | vim - +"saveas some_filepath"

This shell command execute "vim command" as :set saveas some_filepath immediately before editing.

So you will able to save editing in some_filepath.

But vim does not send STDOUT edited text.

• 1. Touch temporary file
• 2. Send pbpaste STDIN to VIM
• 3. Save edited text to temporary file
• 4. STDOUT from edited temporary file and STDOUT to pbcopy
• 3. Remove temporay file

This is a first example of this article.

• VIM - Vi IMproved 8.1 (2018 May 18, compiled Aug 7 2018 21:58:18)
• Max OS X High Sierra

• Read from stdin to new, named, file in vim - Super User