vim_in_pipe.sh

# use vim ex commands in a UNIX pipe
# e.g.:
# $ printf "foo\nbar\nbaz\n" | vp 'g/^b/d'
# foo
# 
vp() {
	vim - -u NONE -es '+1' "+$*" '+%print' '+:qa!' | tail -n +2
}

# use vim normal mode commands in a UNIX pipe
# e.g.:
# $ printf "foo\nbar\nbaz\n" | vn 'dd'
# bar
# baz
#
vn() {
	vim - -u NONE -es '+1' "+normal $*" '+%print' '+:qa!' | tail -n +2
}