add script to create user account for the ssh session

ssh_session_adduser.sh

+sudo useradd -m -s /bin/bash -g users -G adm,docker,dialout,cdrom,floppy,audio,dip,video,plugdev,netdev $1
+sudo cp /etc/skel/.* /home/$1
+sudo passwd $1 << EOF
+$1
+$1
+EOF
+

ssh_session_init.sh

+# scp -i ~/.ssh/id_ifb ssh_session_init.sh ssh_session_adduser.sh 2020_participants_mail.txt ubuntu@134.158.247.127:
+# ssh -i ~/.ssh/id_ifb ubuntu@134.158.247.127
+# bash ssh_session_init.sh 2020_participants_mail.txt
+
+cat $1 | sed -e "s/@[^,]*[,]*//g" | tr ' ' '\n' | awk '{system("bash ssh_session_adduser.sh "$0)}'
+sudo sed -i 's|PasswordAuthentication no|PasswordAuthentication yes|' /etc/ssh/sshd_config
+sudo systemctl restart sshd