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0-iam_betty
0-iam_betty
 
 
1-who_am_i
1-who_am_i
 
 
10-mirror_permissions
10-mirror_permissions
 
 
100-change_owner_and_group
100-change_owner_and_group
 
 
101-symbolic_link_permissions
101-symbolic_link_permissions
 
 
102-if_only
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103-Star_Wars
103-Star_Wars
 
 
11-directories_permissions
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12-directory_permissions
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13-change_group
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2-groups
2-groups
 
 
3-new_owner
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4-empty
4-empty
 
 
5-execute
5-execute
 
 
6-multiple_permissions
6-multiple_permissions
 
 
7-everybody
7-everybody
 
 
8-James_Bond
8-James_Bond
 
 
9-John_Doe
9-John_Doe
 
 
README.md
README.md
 
 
_hello
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hello
hello
 
 
quiz.md
quiz.md
 
 

README.md

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shell permissions

Intro

Lets have a look at shell permisions

Resources

  1. Permissions
  2. File permissions
  3. Google
  4. Youtube

Man or help

  • chmod
  • sudo
  • su
  • chown
  • chgrp
  • id
  • groups
  • whoami
  • adduser
  • useradd
  • addgroup

Learning objectives

By the end of this project, you should be able to explain to anyone Without the help of google the following concepts

Permissions

  • What do the commands chmod, sudo, su, chown, chgrp do
  • Linux file permissions
  • How to represent each of the three sets of permissions (owner, group, and other) as a single digit
  • How to change permissions, owner and group of a file
  • Why can’t a normal user chown a file
  • How to run a command with root privileges
  • How to change user ID or become superuser

Other man pages

  • How to create a user
  • How to create a group
  • How to print real and effective user and group IDs
  • How to print the groups a user is in
  • How to print the effective userid

Quizes

Quiz