Rename files with regular expressions

Examples

• Swap "Lastname, Firstname": find ^(\w+), (\w+), replace with $2 $1
• Remove a trailing copy marker: find \s*\(\d+\)$, replace with nothing
• Zero-pad episode numbers: find E(\d)\b, replace with E0$1
• Pull a date to the front: find ^(.*)_(\d{4}-\d{2}-\d{2})$, replace with $2 $1

Without regex: wildcards

Lite's Replace step understands * (any text), ? (one character) and # (digits), each captured as $1, $2. That covers a lot of what people reach for regex to do.

Safe by default

Regex is easy to get slightly wrong. Every file shows its new name with the changed part highlighted, names that collide are flagged, and Undo reverses the batch, even after you quit the app.