I read the post on escaping command line arguments, and after some messing around with the script, I got it running. This is the new, working script: filebot -script fn:amc --log-file amc.log --def "seriesFormat=F:/Tv Shows/{n}/Season{s}/{n.replaceTrailingBrackets()} - {s00e00} - {t.replaceAll ...

I tried running the following automation script in cmd: filebot -script fn:amc --log-file amc.log --def "seriesFormat=F:/Tv Shows/{n}/{'S'+s}/{n.replaceTrailingBrackets()} - {s00e00} - {t.replaceAll(/[!?.]+$/).replaceAll(/[`´‘’ʻ]/, "'") .lowerTrail().replacePart(', Part $1')} [{vf} {vc}][{ac}]" "a ...