The btrfsck command is a filesystem-check command like fsck, but it works with the btrfs file system. First a little bit about btrfs. As the name implies, btrfs uses a B-tree data structure that is ...

One of the questions that Unix users are sometimes reluctant to ask is how all the directory names — like /etc, /var and /usr/local — came about in the first place. Why did we adopt the particular ...