Itc333 week 3

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Itc333 week 3

  1. 1. Week 3The File System
  2. 2. ž 6.0 Introž 6.1 Pathnamesž 6.2 Mounting and unmountingž 6.3 Organisation
  3. 3. In Unix, anything that exists,including nothing,is in the file system
  4. 4. Of course, there are files anddirectories. But there arealso representations of allsorts of objects.
  5. 5. Namespace API filesystemSecurity model Implementation
  6. 6. A Linux/Unix kernel maysupport several filesystemimplementations:•  Ext3•  Ext4•  ZFS•  VxFS•  ReiserFS•  JFS•  Btrfs•  etc
  7. 7. Everything starts at /.The root.
  8. 8. /tmp/foo is an absolute pathname.tmp/food is a relative pathname.
  9. 9. Spaces are ok.Just use “ or to preservespaces.
  10. 10. mount /dev/sda4 /usersunmount -l /users
  11. 11. No single structure ornaming conventions, greatvariety between Linux andUnix distributions.
  12. 12. /bin Core OS commands/boot Kernel and files for booting/dev Devices/etc Startup and configuration/home User home directories/lib Libraries, shared libraries, C compiler

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