Created
November 18, 2013 18:59
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Allows the user to add/edit/delete user accounts on the system
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| #!/bin/bash | |
| # User Management script that allows the user to add/edit/delete | |
| # user accounts on the system. Must be run with root privileges. | |
| # Requires mkpasswd to be installed. | |
| # | |
| # Author: Pavan Chander | |
| # Revision: 0.7 | |
| # Last update: 2013-11-18 | |
| header() | |
| { | |
| clear | |
| echo "USER MANAGEMENT" | |
| echo "===============" | |
| } | |
| main_menu() | |
| { | |
| echo "Pick a function" | |
| echo "1) Add a user" | |
| echo "2) Edit a user" | |
| echo "3) Delete a user" | |
| echo "q) Quit" | |
| echo -n "> " | |
| read menu_option | |
| case $menu_option in | |
| 1 ) add_user | |
| ;; | |
| 2 ) edit_user | |
| ;; | |
| 3 ) delete_user | |
| ;; | |
| q ) echo "Bye!" | |
| ;; | |
| * ) header | |
| echo "Error: Invalid entry, try again!" | |
| main_menu | |
| esac | |
| } | |
| add_user() | |
| { | |
| header | |
| echo "Adding a user" | |
| echo -n "Username: " | |
| read user | |
| if [ -z "$(getent passwd $user)" ]; then | |
| # User doesn't exist, proceed with user creation | |
| echo -n "Password: " | |
| read password | |
| echo -n "Comment: " | |
| read comment | |
| useradd -m -p `mkpasswd $password` -U -s /bin/bash -c "$comment" "$user" | |
| if [ $? == 0 ]; then | |
| header | |
| echo "${user} was successfully added" | |
| main_menu | |
| else | |
| header | |
| echo "Error: There was a problem creating ${user}" | |
| main_menu | |
| fi | |
| else | |
| header | |
| echo "Error: User already exists!" | |
| main_menu | |
| fi | |
| } | |
| edit_user() | |
| { | |
| header | |
| echo "Editing a user" | |
| # Make sure a username is provided | |
| user="" | |
| while [ -z "$user" ] | |
| do | |
| echo -n "Username: " | |
| read user | |
| done | |
| if [ -z "$(getent passwd $user)" ]; then | |
| # User doesn't exist | |
| header | |
| echo "ERROR: That was not a valid user!" | |
| main_menu | |
| else | |
| orig_shell=`getent passwd $user | cut -f7 -d:` | |
| orig_comment=`getent passwd $user | cut -f5 -d:` | |
| header | |
| echo "Editing ${user}" | |
| read -e -p "Shell: " -i "${orig_shell}" shell | |
| read -e -p "Comment: " -i "${orig_comment}" comment | |
| usermod -c "$comment" -s "$shell" $user | |
| if [ $? == 0 ]; then | |
| header | |
| echo "Changes to ${user} have been saved" | |
| main_menu | |
| else | |
| header | |
| echo "Error: There was a problem saving changes to ${user}!" | |
| main_menu | |
| fi | |
| fi | |
| } | |
| delete_user() | |
| { | |
| header | |
| echo "Deleting a user" | |
| echo -n "Username: " | |
| read user | |
| if [ -z "$(getent passwd $user)" ]; then | |
| # User doesn't exist | |
| header | |
| echo "Error: That user doesn't exist!" | |
| main_menu | |
| else | |
| echo "Are you sure you want to delete ${user}?" | |
| echo -n "Please type 'yes': " | |
| read confirmation | |
| if [ "$confirmation" == "yes" ]; then | |
| userdel -r "$user" | |
| if [ $? == 0 ]; then | |
| header | |
| echo "${user} has been deleted" | |
| main_menu | |
| else | |
| header | |
| echo "Error: There was a problem deleting ${user}!" | |
| main_menu | |
| fi | |
| else | |
| header | |
| echo "Warning: ${user} was not deleted" | |
| main_menu | |
| fi | |
| fi | |
| } | |
| if [ $EUID != 0 ]; then | |
| echo "Error: User manipulation requires root privileges" | |
| exit 126 | |
| fi | |
| header | |
| main_menu |
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