Linux - Sorting folders by size

The problem

• JL : Steph, your filesystem is almost full on bikette04, more than 95% already!!
• Steph: oh gosh, I don’t even remember what’s on this server…

So, how do you identify, what’s consuming all of the file system in less than 30sec ?

The solution

When you’re not in the mood for googling, and most importantly there’s a JLB around, you just ask and boom:

cd /
du -sch * | sort -h

Don’t thank me.