create users - ubuntu

create_user.sh

command:
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sudo useradd -m -d /home/<user> -s /bin/bash -c "<rollnumber>" -U <user>

password:
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sudo passwd <user>

Add user to sudo
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usermod -aG sudo <username>

mkdir /media/data/<username>

give permission to user folder
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sudo chown root:root <userfolder>
sudo chmod gu+rwx,o+rx file
sudo setfacl -m u:<user>:rwx <userfolder>


HELP:
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giving permissions
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chmod u=rx file        (Give the owner rx permissions, not w)
chmod go-rwx file      (Deny rwx permission for group, others)
chmod g+w file         (Give write permission to the group)
chmod a+x file1 file2  (Give execute permission to everybody)
chmod g+rx,o+x file    (OK to combine like this with a comma)

mounting drives
---------------

sudo mount /dev/sdd /media/Data1
sudo mount /dev/sdb /media/Data2