Linux - Root Commands

This is Part 8 of the Linux CLI Commands series.

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Root Commands

su - root -- switch user
su root -- swith user in the current path
useradd username -- to create a user
passwd username -- to set a passwd for that user
useradd -g primary_group_name user_name -G Sub_group_name -- use to create user and add primary and secondary group
usermod -g primary_group_name user_name -G Sub_group_name -- to add primary and secondary group for the user
usermod -c -- modify the content of the user
usermod -e -- modify the date
usermod -l -- modify user name
userdel -f -- remove user while login
userdel -r -- remove user and home path
groupadd group_name -- to creata a group
groupdel group_name -- to delete group
cat /etc/passwd -- to check users
cat /etc/group -- to check group
fdisk -l -- for list out the disk
sudo -- other users can access the root commands
vi /etc/sudoers -- add users in this sudoers file to access the root commands