OPS145 Lab 3 Newversion: Difference between revisions

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-= !!!THIS PAGE IS NOT READY YET!!! =
+The latest version is here: [[OPS145_Lab_3]]
-= Filesystems =
+[[Category:OPS145]]
-A filesystem is a system of organizing files on a storage device. Such a system consists of:
-* A standard specifying the meaning and order of bytes on the storage device, and
-* Driver-like software which hides the filesystem-dependent details, and allows generic operations to be performed (e.g. copy this file to that directory)
-Files and directories are very different things from a human point of view, but on a filesystem they are almost the same thing. Each has a name, permissions, modification date, and the location of its contents. The contents of a file are whatever you'd expect they are, it's different for each type of file. The contents of a directory are the list of its contents.
-In this course we're only going to look at the user level of Linux filesystems.
-= Absolute paths start at root =
-In Linux there are no drive letters. All the storage which is accessible is accessible via a path which starts at the root (a single forward slash).
-We'll start exploring these ideas by paying attention to the directories and files in the following diagram:
-[[File:FilesystemIntro.png|center|499x499px]]
-= Also: =
-Linux filesystem
-Navigate filesystem
-Home directory, directories
-~
-mkdir
-rmdir
-tree
-ls -r
-cp
-mv
-rm
-ln -s