In bash I don't know how to do that. I need to do a bash-script. At stdin I have .srt file of subtitles in this format:
num HH:MM:SS,SSS --> HH:MM:SS,SSS text line 1 text line 2 ...
HH:MM:SS,SSS start and finish of title for text.
Script must shift seconds. (it can be + or -)
$cat bmt.srt 5 00:01:02,323 --> 00:01:05,572 Hello, my frieds! 6 .... $./shifter.sh +3<mbt.srt 5 00:01:05,323 --> 00:01:08,572 Hello, my frieds! 6
I need to grab all HH:MM:SS and convert them to seconds firstly. Is somebody able do this without sed?