from subprocess import *
lines = getoutput('df -h | grep "^/dev/"').split("\n")

spaces = []
for line in lines:
    split_line = line.split()
    spaces.append(split_line[3])

print(spaces)

total = 0
for space in spaces:
    if "T" in space:
        total += 1000 * float(space[:-1])
    elif "G" in space:
        total += float(space[:-1])
    else:
        print("Unknown space:  ", space)
print("Total Space:  ", str(total) +  "G")