Digital Forensics Write a Linux command associated to each one of the following
ID: 3906485 • Letter: D
Question
Digital Forensics
Write a Linux command associated to each one of the following actions; 1.- Show on a terminal all the users in the system. 2.- Using the app GNU PG encrypt the file data.txt 3. Mount the device /etc/sdb1 in /media/myUSB 4.- Change the permission of the file data.txt to be read, written and execute only by its owner. 5.- Create the tar file data.txt.tar.ga 6. Recover the content of the file data.txt.tar.gz in the folder /backup_tmp/ 7.- Write a command to show only the hidden files in the current directory 8.- Write a command for finding all files in the system with extension jpg. 9.- Write a command to show all files accessed in the last 24 hours by any user in the system 10. Write a command to find all the files in the current directory that contain the word X007. Concepts in practice: Linux System Basics.Explanation / Answer
Please Note: As per Chegg Answering Guidelines, I have answered the first four questions. Please Post Separate for Separate Questions.
1. Show on terminal all the users in the system.
$ awk -F':' '{ print $1}' /etc/passwd
The above command shows all the usernames in the system from the /etc/passwd file.
2. Using the app GNU PG encrpt the file data.txt
$ gpg -c data.txt
The above command excrypts the file data.txt
3. Mount the device .etc/sdb1 in /media/myUSB
sudo mount .etc/sdb1 /media/myUSB
.etc/sdb1 is the path to the device and /media/myUSB is the directory for the USB stick.
4. Change the permission of the file data.txt.tar.gx to be read, written and execute only by its owner.
chmod go-rwx data.txt.tar.gx // removing the permissions from all users
chmod u=rwx file // adding permissions of rwx for the owner only.