Remove part of an MKV file

cut_out_mkv.sh

#!/usr/bin/env bash

# Very simple script if you have to do this operation quite often, but is not exactly checking a lot of edge cases
# USE WITH CARE!

# Requires ffmpeg (apt install ffmpeg)
# Requires mkvmerge (apt install mkvtoolnix)

# Call as ./cut_out_mkv.sh INPUT_FILE.mkv 00:00:10 00:00:15 OUTPUT_FILE.mkv to e.g.
# remove 5 seconds from the video starting at the tenth second

# argument 1: input file name

# Copy first part (argument 2: format HH:MM:SS)
ffmpeg -i $1 -ss 00:00:00 -to $2 p1.mkv
# Copy second part (argument 3: format HH:MM:SS)
ffmpeg -i $1 -ss $3 -p2.mkv
# Merge (argument 4: output file name)
mkvmerge -o $4 p1.mkv +p2.mkv
rm p1.mkv
rm p2.mkv