#!/bin/bash
#

BLUE='\033[34m'
CLEAR='\033[0m'
IFS=$'\n'

# Check if running under Linux
os_name="$(uname -s)"
if [[ "$os_name" == "Darwin" ]]; then
  os_name="macOS"
fi
if [[ "$os_name" != "Linux" ]]; then
  echo "This script is not supported under $os_name." 1>&2
  exit 1
fi

# List devices
for line in $(lsblk -do NAME,TRAN,SIZE,VENDOR,MODEL,SERIAL); do
  if [[ "${line:0:4}" == "NAME" ]]; then
    echo -e "${BLUE}${line}${CLEAR}"
  else
    echo "${line}"
  fi
done
echo ""

# List loopback devices
if [[ "$(losetup -l | wc -l)" > 0 ]]; then
  for line in $(losetup -lO NAME,PARTSCAN,RO,BACK-FILE); do
    if [[ "${line:0:4}" == "NAME" ]]; then
      echo -e "${BLUE}${line}${CLEAR}"
    else
      echo "${line}" | sed -r 's#/dev/(loop[0-9]+)#\1   #'
    fi
  done
  echo ""
fi

# List partitions
for line in $(lsblk -o NAME,SIZE,FSTYPE,LABEL,MOUNTPOINT); do
  if [[ "${line:0:4}" == "NAME" ]]; then
    echo -e "${BLUE}${line}${CLEAR}"
  else
    echo "${line}"
  fi
done
echo ""