#!/usr/bin/python

import sys
import anydbm

def prefix(string, max_len):
	if string[max_len:]:
		return string[:max_len] + '...'
	else:
		return string

def display(key, value):
	sys.stdout.write('-> %-20s %s\n' % (prefix(key, 20), prefix(value, 1000)))

def main():
	for filename in sys.argv[1:]:
		try:
			db = anydbm.open(filename, 'r')
		except anydbm.error:
			sys.stderr.write('Error opening %s - continuing\n' % filename)
			continue
		for key in db.keys():
			value = db[key]
			display(key, value)
		db.close()

main()