[Getting options] #Bash

getopt.sh

#!/bin/bash

lpr_bin="/usr/bin/lpr"
lpadmin_bin="/usr/sbin/lpadmin"

named="fuji"
size="A4"
sides="one-sided"
colormode="color"
number="1"

LONG_ARGUMENT_LIST=(
    ip
    delete
    name
    number
    size
    color
    sides
    file
)

TURNS_ARGUMENT_LIST=(
    a
    m
    d
    p
)

ARGS=$(getopt \
    --options "$(printf "%s," "${TURNS_ARGUMENT_LIST[@]}")" \
    --longoptions "$(printf "%s:," "${LONG_ARGUMENT_LIST[@]}")" \
    -n "$(basename "$0")" \
    -- "$@"
)

if [ ! "$?" ]; then echo "Terminating..." >&2 ; exit 1 ; fi

eval set -- "${ARGS}"


while true;
do
    case "$1" in
        -a | -m) nsenter -t 1 -m -u -n -i sh -c "$lpadmin_bin -p ""$named"" -E -v socket://""$ip_address"" -m lsb/usr/cupsfilters/Fuji_Xerox-DocuPrint_CM305_df-PDF.ppd" ; shift ;;
        -d) nsenter -t 1 -m -u -n -i sh -c "$lpadmin_bin -x ""$named""" ; shift ;;
        -p) nsenter -t 1 -m -u -n -i sh -c "$lpr_bin -P ""$named"" -#""$number"" -o media=""$size"" -o sides=""$sides"" -o colormode=""$colormode"" ""$file"""; shift ;;
        
        --name) named="$2" ; shift 2 ;;
        --ip) ip_address="$2" ; shift 2 ;;
        --number) number="$2" ; shift 2 ;;
        --size) size="$2" ; shift 2 ;;
        --color) colormode="$2" ; shift 2 ;;
        --sides) sides="$2" ; shift 2 ;;
        
        --file) 
            trap 'rm -f "$file"' EXIT
            file=$(mktemp /var/files/script/.file.XXXXXXXX) || exit 1
            if ! curl -s -o "$file" "$2" >> /dev/null 2>&1 ; then
                unset file
            fi
            shift 2
        ;;

        --) shift ; break ;;
    esac
done

While; do case.sh

while [[ "$1" =~ ^- && ! "$1" == "--" ]]; do case $1 in
  -V | --version )
    echo $version
    exit
    ;;
  -s | --string )
    shift; string=$1
    ;;
  -f | --flag )
    flag=1
    ;;
esac; shift; done
if [[ "$1" == '--' ]]; then shift; fi