Converting mp4 to mkv with subtitles

gistfile1.txt

#!/bin/bash

dep(){
	sudo apt install mkvtoolnix iconv
}

convertToMkv(){
	INPUT_FILE=$1
	SRT_FILE=$2
	OUTPUT_FILE=$3
	# mkvmerge supports only UTF-8
	iconv -f ISO-8859-1 -t UTF-8//TRANSLIT $SRT_FILE -o $SRT_FILE.utf8
	mkvmerge -o $OUTPUT_FILE $INPUT_FILE $SRT_FILE.utf8
}

if [ $# -eq 3 ]; then
	convertToMkv $1 $2 $3
else
    echo "Usage: mkv-with-sub.sh INPUT_FILE SRT_FILE OUTPUT_FILE"
fi