Tag: terminal

Add, Delete, and Update Accounts in Ubuntu from Terminal

Single user account on a shared computer can be a security issue? Using multiple user accounts in Ubuntu is a powerful way to improve both security and workflow organization. Separating work documents from personal files, restricting access to sensitive data for different users, and simplifying collaboration with colleagues. Most importantly, using a single root account for everyday tasks creates a significant security risk. Accidental data deletion or accidental compromised program installation with root privileges could have devastating consequences.

Adding new user

Set your username.


sudo adduser username

When adding new user you can just add the password and skip other requirements like complete name and address and other things if thats not necessary for you.

Removing user


sudo userdel username

Delete everything of the user including files


sudo userdel -r username

Grant the user sudo privilege ( user can install and and change everything)


sudo usermod -aG sudo username

To remove sudo privilege


sudo deluser username sudo

Update username of a user


sudo usermod -l newname previousname

How to add or remove a directory in ubuntu

Creating the directory


mkdir directory_name

If the path is protected we need to use sudo command

sudo mkdir dicrectory_name

Removing the directory


rmdir directory_name

If the path is protected we need to use sudo command

sudo rmdire dicrectory_name

Remove the directory including items permanently


rm -r directory_name

More

Make sure you understand the commands actions . Then run the command. Because this can delete all the files and delete files.

Delete All Fills of a directory. Open terminal in that directory and run this command


rm -rf *

Or you can specify the path like this

rm -rf ~/Documents/my_folder/*

it will delete all the files of my_folder

Deleting Specific Folder of a Directory


rm -rf my_folder

One of useful deleting feature. Delete files using the file extension like .mp4 or .txt or like this . Open terminal in that directory.

rm -f *.txt

Or you can specify the directory path


rm -f ~/Documents/my_folder/*.txt