Chapter 4: Highlights of the filesystem

Single hierarchical filesystem

Drives are on the tree

Directories and files

Access permissions

Utilities for working with directories

From the exercises on page 122

$ ls -ld dirtmp
drwxr-xr-x 2 langley langley 4096 Sep 10 10:23 dirtmp
$ ls dirtmp
$ rmdir dirtmp
rmdir: failed to remove ‘dirtmp’: Directory not empty
$ rm dirtmp/*
rm: No match