adding user to a group in linux code example

Example 1: ubuntu add user to group

sudo usermod -a -G group username

Example 2: how to add multiple users to group in linux

gpasswd -M userA,userB,userC mygroup
#if gpasswd is available on system.

Example 3: linux add user to group

# add user to additional group

usermod -G groupname username

Example 4: linux user groups

groups $username

Example 5: how to create a user and add it to a group in linux

useradd -G examplegroup exampleusername