bin sh to unix case in --to -t to echo Using basename --to FORMAT file

#! /bin/sh 

to="unix"

case "$1" in
  --to|-t) to=$2
  ;;

  *) echo "Using: $(basename $0) --to FORMAT filename"
     exit 1
  ;;
esac

vim $3 -c ":set ff=$to|wq"

exit 0