Open tabs with mvim always

mvim_tabs.rst

The mvim file is usually not writeable, change that:

sudo chmod u+w `which mvim`

Now open it for editing:

sudo vim `which mvim`

Add the following line to the top of the file, below the commented section:

tabs=true

Replace the if structure at the bottom of the file with the following:

Last step: fire up vim:

if [ "$gui" ]; then
  if $tabs && [[ `$binary --serverlist` = "VIM" ]]; then
    exec "$binary" -g $opts --remote-tab-silent ${1:+"$@"}
  else
    exec "$binary" -g $opts ${1:+"$@"}
  fi  
else
  exec "$binary" $opts ${1:+"$@"}
fi