Submission for Project 03 - Joseph Ibeh

Joseph_Ibeh.md

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+1. Login to the server as super user and perform below
+i. Create users and set passwords – user1, user2, user3
+ii. Create Groups – devops, aws
+iii. Change primary group of user2, user3 to devops group
+iv. Add aws group as secondary group to user1
+v. Create the file and directory structure shown in the above diagram.
+vi. Change group of /dir1, /dir7/dir10, /f2 to “devops” group
+vii. Change ownership of /dir1, /dir7/dir10, /f2 to “user1” user
+
+Commands used
+
+# Create users
+useradd user1
+useradd user2
+useradd user3
+
+# Set passwords for each user
+passwd user1
+passwd user2
+passwd user3
+
+# Create groups
+groupadd devops
+groupadd aws
+
+# Change Primary Group of user2 and user3 to 'devops'
+usermod -g devops user2
+usermod -g devops user3
+
+# Add 'aws' Group as a Secondary Group to user1
+usermod -aG aws user1
+
+# Create the file and directory structure shown in the above diagram.
+mkdir -p /dir1/fi /dir2/dir1/dir2/dir10/f3 /dir3/dir11 /dir4/dir12/f5/f4 /dir5/dir13 /dir6 /dir7/dir10/f3 /dir8/dir9 fi f2 opt/dir14/dir10/53
+
+
+# Change group of /dir1, /dir7/dir10, /f2 to “devops” group
+sudo chgrp -R devops /dir1 /dir7/dir10 /f2
+
+# Change the Ownership of /dir1, /dir7/dir10, /f2 to the User "user1"
+sudo chown -R user1:user1 /dir1 /dir7/dir10 /f2
+
+
+2. Login as user1 and perform below
+i. Create users and set passwords – user4, user5
+
+Commands used
+
+I first gave the user1 sudo privileges by running the command
+
+sudo usermod -aG sudo user1
+
+Switched to user1.
+su - user1
+
+sudo useradd user4
+sudo passwd user4
+
+sudo useradd user5
+sudo passwd user5
+
+ii. Create Groups – app, database
+
+sudo groupadd app
+sudo groupadd database
+
+
+3. Login as ‘user4’ and perform below
+I. Create directory – /dir6/dir4
+ii. Create file – /f3
+iii. Move the file from “/dir1/f1” to “/dir2/dir1/dir2”
+iv. Rename the file ‘/f2′ to /f4’
+
+Commands used:
+
+sudo usermod -aG sudo user4 (for sudo privileges)
+
+su - user4
+
+sudo mkdir -p /dir6/dir4
+
+sudo touch /f3
+
+sudo mkdir /dir1/f1  # created it because the file doesn't exist in user4
+
+sudo mv /dir1/f1 /dir2/dir1/dir2/
+
+sudo mv /f2 /f4
+
+
+4. Login as ‘user1’ and perform below
+
+I. Create directory – “/home/user2/dir1”
+ii. Change to “/dir2/dir1/dir2/dir10” directory and create file “/opt/dir14/dir10/f1” using relative path method.
+iii. Move the file from “/opt/dir14/dir10/f1” to user1 home directory
+iv. Delete the directory recursively “/dir4”
+v. Delete all child files and directories under “/opt/dir14” using single command.
+vi. Write this text “Linux assessment for a DevOps Engineer!! Learn with Fun!!” to the /f3 file and save it.
+
+Commands used:
+
+# Task I: Create directory
+sudo mkdir -p /home/user2/dir1
+
+# Task II: Create file using relative path
+cd /dir2/dir1/dir2/dir10
+sudo mkdir -p ../../../opt/dir14/dir10
+sudo touch ../../../opt/dir14/dir10/f1
+
+# Task III: Move file to user1 home directory
+mv ../../../opt/dir14/dir10/f1 ~/
+
+# Task IV: Delete directory recursively
+sudo rm -rf /dir4
+
+# Task V: Delete child files and directories under /opt/dir14
+sudo rm -rf /opt/dir14/*
+
+# Task VI: Write text to /f3 file
+echo "Linux assessment for a DevOps Engineer!! Learn with Fun!!" | sudo tee /f3
+
+
+5. Login as ‘user2’ and perform below
+I. Create file “/dir1/f2”
+ii. Delete /dir6
+iii. Delete /dir8
+iv. Replace the “DevOps” text to “devops” in the /f3 file without using an editor.
+v. Using Vi-Editor, copy line1 and paste 10 times in the file /f3.
+vi. Search for the pattern “Engineer” and replace with “engineer” in the file /f3 using a single command.
+vii. Delete /f3
+
+Commands used:
+
+sudo chown -R user2:user2 /dir6
+
+sudo usermod -aG sudo user2
+
+sudo su - user2
+
+sudo touch /dir1/f2
+
+sudo rm -r /dir6
+
+sudo rm -r /dir8
+
+sudo sed -i 's/DevOps/devops/g' /f3
+
+echo -e "Linux assessment for a DevOps Engineer!! Learn with Fun!!\n" | vim -c "10r !" -c "wq" /f3
+
+sudo sed -i 's/Engineer/engineer/g' /f3
+
+sudo rm /f3
+
+
+9. Login as ‘user5’ and perform below
+I. Delete /dir1
+ii. Delete /dir2
+iii. Delete /dir3
+iv. Delete /dir5
+v. Delete /dir7
+vi. Delete /f1 & /f4
+vii. Delete /opt/dir14
+
+
+Commands used:
+
+sudo usermod -aG sudo user5
+
+su - user5
+
+sudo rm -r /dir2
+
+sudo rm -r /dir3
+
+sudo rm -r /dir5
+
+sudo rm -r /dir7
+
+sudo rm -r /f1
+sudo rm -r /f4
+sudo rm -r /opt/dir14
+
+
+10. Logins as ‘root’ user and perform below
+Delete users – user1, user2, user3, user4, user5
+Delete groups – app, aws, database, devops
+Delete home directories of all users user1, user2, user3, user4, user5 if any exist still.
+
+Commands used:
+
+# To delete users
+sudo userdel -r user1
+sudo userdel -r user2
+sudo userdel -r user3
+sudo userdel -r user4
+sudo userdel -r user5
+
+# Delete Groups
+sudo groupdel app
+sudo groupdel aws
+sudo groupdel database
+sudo groupdel devops
+
+# Delete Home Directories
+sudo rm -rf /home/user1
+sudo rm -rf /home/user2
+sudo rm -rf /home/user3
+sudo rm -rf /home/user4
+sudo rm -rf /home/user5
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