Assignment 4

1. Use grep to find the word root in the file /etc/passwd.

2. Search for the word error in the file /var/log/messages.

no idea

3. Display all lines in /etc/passwd that contain “bash”.

4. Search for the word oracle in all files inside your home directory.

5.Find lines in /etc/passwd that do not contain the word nologin.

6. Show all the processes currently running on your system.

7. Display only your own processes using ps.

8. View the file /etc/passwd one page at a time using more.

9. WUse ifconfig to check your system’s IP address and network interfaces.

10. Create a new file called test.sh and give it execute permission to owner

11. Remove read permission for group user and public on the file test.sh