#!/bin/bash
# mountDDE mount the partitions of the disk b.
# If arguments are passed, it will mount the specific partitions, a, b or c.

if [ -v "$1" ] # If no argument is passed, act on all partitions.
then a=t
    b=t
    c=t
fi

while [ -n "$1" ] ; do
    if [ $1="a" ] # We test the argument(s), to know which partition has to be mounted.
    then a=t
    elif [ $1="b"] # I hate redundunces
    then b=t
    elif [ $1="c"] # Again...
    then c=t
    fi
    shift
done

[ $a="t" ] && sudo mount /dev/sba /media/ba # I'll actually use uuids.
[ $b="t" ] && sudo mount /dev/sbb /media/bb # Not direct paths, like here.
[ $c="t" ] && sudo mount /dev/sbc /media/bc

[ $1="b"]

[ "$1" = b ]

[[ $1 = b ]]

while [[ $1 ]] ; do
    case "$1" in
    a) a=t ;;
    b) b=t ;;
    c) c=t ;;
    esac
    shift
done

for drive; do
    case $drive in
    a) a=t ;;
    b) b=t ;;
    c) c=t ;;
    esac
done

#!/bin/bash

if [[ $# -gt 0 ]]; then
    set -- a b c
fi

for x; do
    case $x in
    [abc]) sudo mount /dev/sb$x /media/b$x ;;
    esac
done

#!/bin/bash

# If no argument is passed, act on all partitions.
if (( $# == 0 )); then
    a=t b=t c=t
else
    for arg; do
        if [[ $arg == a|b|c ]]; then
            declare $arg=t
        else
            echo "ignoring argument '$arg'"
        fi
    done
fi

declare -A uuids=( [a]=1234 [b]=3456 [c]=5678 )

for dest in a b c; do
    if [[ ${!dest} == t ]]; then
        sudo mount /dev/sb$dest "${uuids[$dest]}"
    fi
done

function do_mount()
{
    while [ -n "$1" ]; do
        sudo mount /dev/sb"$1" /media/b"$1"
    done
}

if [ -v "$@" ]; then
    do_mount a b c
else
    do_mount "$@"
fi