thing for christian.sh

#!/usr/bin/env bash

# Config
set -e

# Global variables
argv=( "$@" ) #places all args in an array. 
arrayLength=${#argv[@]} #determines length of the array
i=0 #integer for running through the loops
query="$1" #the search query
epNumber="" #episode number
re='^[0-9]+$' #regular expression to denote whole number integers

# functions
function help () {
    echo "usage: $(basename $0) <show name> <episode number>"
}

while [[ $i != $arrayLength ]]; do #cycles through the array of arguemnts
    if [[ -z "$query" ]]; then #checks if query is empty to avoid adding uneeded plus sign to the final query 
        help
        exit 1
    elif [[ ${argv[$i]} =~ $re ]] ; then #checks if arguement is an integer. This isolates the episode number
        epNumber=${argv[$i]} #sets the value of epNumber
    else 
        query=$query"+"${argv[$i]} #adds next argument to the query varible with a leading plus sign
    fi
    i=$((i+1)) #increments i. may be redundent
done

query=$query"+""episode""+"$epNumber #sets query's final value
string="$(curl -s "http://www.crunchyroll.com/search?from=&q=${query}" -o - | grep -m 1 "http://www.crunchyroll.com/")" #searches crunchyroll for the episode and extracts the url
url="$(echo ${string:21:-56})" #sets value of the url
streamlink --crunchyroll-username reddeath68@yahoo.com --crunchyroll-password ShellingFord-san1* $url?p480=1 480p #plays the stream at 480p quality