split a video almost every minute into multiple parts. requires zsh

split.sh

#!/bin/zsh

#$((2.77+(i*60)-0.5))

#enable brace expansion so padding 0s are added
setopt brace_ccl

for i in {05..22}
 do ffmpeg -i s07e21.mkv -acodec copy -ss $(((i*59.5)+2.77)) -t 00:01:00 pt_$i.mp4
done