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===Linking Files===
''Links are powerful and add flexibility to Linux filesystems because everything is a file.<br><br>There are two types of Linux filesystem links: hard and soft. The difference between the two types of links is significant, but both types are used to solve similar problems. They both provide multiple directory entries (or references) to a single file, but they do it quite differently.'' <br><br>Reference: https://opensource.com/article/17/6/linking-linux-filesystem
'''A File's inode (index) Numberof a File:'''
'''Hard Links:'''
<table align="right"><tr valign="top"><td>[[Image:hard-link-1.png|thumb|right|300px|(Image licensed under [https://creativecommons.org/licenses/by-sa/3.0/ cc])]<br>Image modified manipulated by author]]]</td><td>[[Image:inode-number-3.png|thumb|right|400px|(Image licensed under [https://creativecommons.org/licenses/by-sa/3.0/ cc])]]</td></tr></table>
Hard link is a reference to the physical data on a file system
More than one hard link can be associated with the same physical data
'''Symbolic Links:'''
<table align="right"><tr valign="top"><td>[[Image:symbolic-link-1.png|thumb|right|300px|(Image licensed under [https://creativecommons.org/licenses/by-sa/3.0/ cc])]]</td><td>[[Image:inode-number-4.png|thumb|right|400px|(Image licensed under [https://creativecommons.org/licenses/by-sa/3.0/ cc])]]</td></tr></table>
A Symbolic Link is an indirect pointer to a file – a pointer to the hard link to the file
You can create a symbolic link to a directory
Also known as soft links or symlinks
===Managing Processes===
All programs that are executing on a UNIX system are referred to as processes
Each process has an owner
Background
[[Image:process-diagram-1.png|thumb|right|300px|(Image licensed under [https://creativecommons.org/licenses/by-sa/3.0/ cc])]]]
UNIX processes are hierarchical
This structure has a root, parents, and children
# Create a '''table''' listing each Linux command, useful options and command purpose for the following Linux commands: '''ln''' , '''ps''' , '''top''' , '''fg''' , '''bg''' , '''jobs''' , '''kill'''
[[Tutorial8: Links / Process Management]]
[[Category:ULI101]]