User mount bash macros

# Mounts as regular user device /dev/<arg1> if not already mounted,
# changes into the devices directory with pushd,
# and prints the directory.

# Usage:
# Mount /dev/sdb1 if it is not mounted and change to it's directory
#   d sdb1
# Unmount /dev/sdb1
#   umount $(d sdb1)

function d() {
    OUTPUT=$(udisksctl mount -b /dev/$1 2>&1)
    DIRECTORY=$(echo -n "$OUTPUT" |\
                     sed 's/.*already mounted at `\(.*\)'"'"'\..*/\1/' |\
                     sed 's/.*Mounted .* at \(.*\)\..*/\1/'\
             )
    #    echo "$OUTPUT"
    if [ -d "$DIRECTORY" ]
    then
        echo -n "$DIRECTORY"
        pushd "$DIRECTORY" > /dev/null
    fi
}