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TOPIC 4.0

TOPIC 4.0. LINUX FILE SYSTEMS ADMINISTRATION. LINUX DIRECTORY STRUCTURE. ABSOLUTE PATHNAME. Tells about the complete path to a certain file or directory is.

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TOPIC 4.0

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  1. TOPIC 4.0 LINUX FILE SYSTEMS ADMINISTRATION

  2. LINUX DIRECTORY STRUCTURE

  3. ABSOLUTE PATHNAME • Tells about the complete path to a certain file or directory is. • All absolute file names start with a slash because the slash indicates the root directory and then followed by the filesystem tree directory by directory. • We use the slash not only for indicating the root directory, but also for separating the directories on the path. • This is different from windows where we use a backslash for separating the directories.

  4. RELATIVE PATHNAME • It starts from the working directory. • This is why you need some special symbols for indicating the relative positions in the filesystem. • These symbols are a dot (.) and two dots (..) and they mean the working directory and the parent directory respectively.

  5. WINDOWS vs LINUX FILE SYSTEM • In Linux there is a single hierarchical directory structure. In Windows, there are typically many partitions with directories under these partitions. • In Linux, everything starts from the root directory, represented by '/', and then expands into sub-directories. In Windows, it had various partitions and then directories under those partitions • unlike Windows, Linux is case sensitive

  6. LINUX DIRECTORIES

  7. FILE SYSTEM ADMINISTRATION ext2 File systems • The ext2 or second extended filesystem • is a file system for the Linux kernel. • It was initially designed by Rémy Card as a replacement for the extended file system (ext). • ext2 was the default filesystem in Debian and Red Hat Linux

  8. FILE SYSTEM ADMINISTRATION ext3 File systems • The ext3 or third extended filesystem • is a journaled file system that is commonly used by the Linux kernel. • It is the default file system for many popular Linux distributions.

  9. FILE SYSTEM ADMINISTRATION ReiserFS File systems • is a general-purpose, journaled file system designed and implemented by a team at Namesys led by Hans Reiser. • ReiserFS is currently supported on Linux. • Introduced in version 2.4.1 of the Linux kernel • it was the first journaling file system to be included in the standard kernel. • ReiserFS is the default file system on the Elive, Xandros, Linspire, GoboLinux, SUSE and Yoper Linux distributions.

  10. FILE SYSTEM ADMINISTRATION XFS File systems • is a high-performance journaling file system created by Silicon Graphics, • originally for their IRIX operating system and later ported to the Linux kernel. • XFS is particularly proficient at handling large files and at offering smooth data transfers.

  11. FILE SYSTEM ADMINISTRATION VFAT File systems • Short for Virtual File Allocation Table, • a virtual installable files system driver used in Windows for Workgroups and Windows 95. • VFAT operates in protected mode • serves as an interface between applications and the File Allocation Table (FAT).

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