Information Technology Reference
In-Depth Information
Chapter 13
Files and Directories
What's in a name? That which we call a rose
By any other name would smell as sweet.
{Juliet
RomeoandJuliet(II,ii,1-2)
(Shakespeare)
FileSystems
--Intro:listof"wants"(excludingreliable)v.challengesv.fs
technique
keyidea:file=nameforbucketofdata
name------->filenum------->fileblocks
directory file
--File
abstractionfilenum->metadata,blocks
metadata--size,creationtime,owner,securitypermissions,
...
--basicabstractions
flatfilesystem:(namescomelater)
open,close,read,write
385
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