This script was made to navigate through the chapters of a serie without opening crunchyroll in the browser.

link_crunchyroll.sh

#!/bin/bash

# This script was made to get the link of a chapter without surfing through
# crunchyroll, so it's ideal if you want to use streamlink to watch the anime.
# First parameter always has to be the name of the serie.
main_url="http://www.crunchyroll.com/$1"
episodes="`curl -s $main_url|egrep -o '/episode-.*?\"'|sed 's/"//g'`"
if [ -z $2 ]; then
	for episode in $episodes; do
		echo $episode
	done
	echo "Escoga el capítulo"
	read chapter
else
	chapter=$2
fi

for episode in $episodes; do
	if [ `echo $episode | perl -pe 's/\/episode-(\d+).*/$1/g'` == "$chapter" ]; then
		selected=$episode
	fi
done
echo "$main_url$selected"

Usage:
bash ./link_crunchyroll name_serie [chapter]
This script is useful with streamlink, one example of execution:
bash ./link_crunchyroll miss-kobayashis-dragon-maid 12 | xargs streamlink

The name of the serie has to be separated by "-".