Summary
This chapter has seen us disseminate the filesystem structure that we find in CentOS Linux and opens our comfort zone to entertain new technologies such as BTRFS. We began with a little trickery or understanding of the hard link count that we can see with the ls or stat command. This count shows how many filenames are linked to the one inode or file metadata. Understanding the metadata of the file led us to look more at /usr/bin/stat and the options that it supplies to us including the three timestamps, not of the apocalypse but of the file itself: last access, last modified, and last changed.
A little foray into special permissions released the knowledge of how users can enable and disable console messaging, the console files being group ...
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