Regex Tester & Validator

Matches filenames starting with 'overdraftlog-' followed by a 14-digit timestamp (e.g., YYYYMMDDHHMMSS), a separator, and 3-digit milliseconds, ending in either .log or .log.sha at the end of a line (multiline mode). Typically used to identify timestamped overdraft log files and their SHA checksum counterparts in file listings or log rotation/cleanup scripts. Note the unescaped dots match any character, making it slightly more permissive than a strict literal filename match.