1. Module 2 - The File System

2. Linux File Types
Directories
Files (text files & scripts)
Binaries
Links (soft/symbolic links)

3. The Linux Directory Tree

4. Directories and Functions

5. The Linux PATH What is PATH ?
PATH is an environmental variable in Linux and other Unix-like operating systems that tells the shell which directories to search for executable files.
/etc/sysconfig/network
/home/hagay/Desktop

6. Absolute and Relative Path
An absolute path starts from the top of the tree
# cd /home/hagay/Desktop
A relative path NEVER starts with /
# cd hagay/Desktop
* assuming /home is where we are

7. Navigating in space The cd command (Change Directory)
# cd Take me to my home directory
# cd /etc/sysconfig - take me to directory
# cd take me to the former directory
# cd take me one directory UP
# cd ~avi take me to Avi’s home directory

8. The Linux File System The current default file system is ext4
Previous versions where ext2 and ext3
ext4 can support partition size of up to 1 exbibyte
(1 exbibyte = 1, terabytes)
ext4 can support a single file size of approximately
1 terabyte

9. The Linux File System and Directory Tree Integration
In Linux we often integrate the file system (partitions) with the Linux directory tree.
Remember our installation ?
We created partitions for some of the Top-Level directories:
/boot MB partition
/ GB partition
/var GB partition

10. The Linux Logical Volume Manager
LVM is a logical volume manager for the Linux kernel. it manages disk drives and similar mass-storage devices.
The term "volume" refers to a disk drive or partition thereof.
It was originally written in 1998 by Heinz Mauelshagen, who based its design on that of the LVM in HP-UX.

11. The Linux LVM Diagram

12. <Insert Picture Here>