Ruby case statement to Bash

How can t开发者_如何学编程his be translated to bash:

case ARGV[1]
  when 'English', 'en'
    dump_filename = "dump_english.sql"
  when 'French', 'fr'
    dump_filename = "dump_french.sql"
  else
    dump_filename = "dump.sql"
end

Thanks.

---

Use the bash case statement:

#!/bin/bash

arg=$1

case "$arg" in
    English) file="dump_english.sql" ;;
         en) file="dump_english.sql" ;;
     French) file="dump_french.sql"  ;;
         fr) file="dump_french.sql"  ;;
          *) file="dump.sql"         ;;
esac

echo "$file"