#!/usr/bin/python """Print fetchmail errors in journal since yesterday, if more than MINCOUNT""" import datetime import systemd.journal as journal yesterday = datetime.datetime.today() - datetime.timedelta(1) SINCE = yesterday MINCOUNT = 20 j = journal.Reader() j.log_level(journal.LOG_ERR) # or more severe j.add_match(_COMM="fetchmail") entries = [entry for entry in j # j.seek_realtime() does not work as expected, so filtering here: if entry['_SOURCE_REALTIME_TIMESTAMP'] >= SINCE] if len(entries) >= MINCOUNT: for entry in entries: print(entry['_SOURCE_REALTIME_TIMESTAMP']) print(entry['MESSAGE'])