pentoo/gentoo
51x
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6c30fc576d
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58e95445e5
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#!/bin/bash
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# LUI for Pentoo - Version 2.1.6b
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#
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# Description: This script searches and organizes information about users on Pentoo/Gentoo systems. It is written to make administration easier and for better transparency.
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#
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# Note: this program has been tested on Pentoo 4.6.
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#
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# Author: 51x
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# License: GNU AFFERO GENERAL PUBLIC LICENSE - Version 3, 19 November 2007
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#
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# Copyright (C) 2016 51x
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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function help {
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echo '''
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Linux User Info
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-h This help message.
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-i User information, use as "-i user".
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-x eXtended information.
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-a List all users.
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-l List all users with locked password.
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-u List all users with unlocked password.
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-n List users with nologin shell.
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You can use multiple arguments too, eg. "./lui_deb.sh -l -u"
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'''
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}
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function user_info {
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data=$(grep ^$OPTARG: /etc/passwd)
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if [ -z "$data" ]
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then
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echo "User not found in /etc/passwd."
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exit ;
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fi
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user=$(echo $data | cut -d: -f1)
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comment=$(grep ^$user /etc/passwd | cut -d: -f5)
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if [ -z "$comment" ]
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then
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comment="-"
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fi
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home=$(echo $data | cut -d: -f6)
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if [ -z "$home" ]
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then
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home="-"
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fi
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homepriv=$(ls -ld $home | awk {'print $1,$3,$4'})
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if [ -z "$homepriv" ]
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then
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homepriv="Home directory does not exist."
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fi
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pass=$(passwd -S $OPTARG | cut -d' ' -f2-)
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groups=$(groups $user | cut -d: -f2)
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if [ -z "$groups" ]
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then
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groups="-"
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fi
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shell=$(echo $data | cut -d: -f7)
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groupid=$(echo $data | cut -d: -f3)
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ID=$(echo $data | cut -d: -f4)
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echo
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echo "User name: $user"
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echo "Comment: $comment"
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echo "Password: $pass"
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echo "Home dir: $home"
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echo "Home perm: $homepriv"
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echo "Groups: $groups"
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echo "Login shell: $shell"
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echo "User ID: $ID"
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echo "Group ID: $groupid"
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echo
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}
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function eXtended {
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#Experimental function!
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echo
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echo "User information"
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echo "----------------"
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user_info
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chage -l $user | tr -d '\t'
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echo
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echo
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echo "Login information"
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echo -e "----------------- \n"
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echo "Last four logins:"
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last | grep $user | tail -4 | tr -s ' '
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echo
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fails=$(pam_tally --user $user | rev | cut -d ' ' -f1 | rev)
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echo "Numer of failed logins: " $fails
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echo
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fail_list=$(grep sshd.\*Failed /var/log/auth.log | grep $user)
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if [ ! -z "$fail_list" ]
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then
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echo "Last six login fails:"
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grep sshd.\*Failed /var/log/auth.log | grep $user | tail -6
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fi
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}
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function all_users {
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min_uid=$(grep "^UID_MIN" /etc/login.defs | tr -s ' ' | cut -d' ' -f2)
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echo "System users / Under UID $min_uid"
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echo "---------------------------------"
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awk -F':' -v "minuid=$min_uid" '{ if ( $3 < minuid ) print $0 }' /etc/passwd
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grep nobody /etc/passwd
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echo
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echo "Normal users / Below UID $min_uid"
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echo "---------------------------------"
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awk -F':' -v "minuid=$min_uid" '{ if ( $3 >= minuid ) print $0 }' /etc/passwd | grep -v ^nobody:
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echo
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}
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function locked_users {
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echo "Locked users:"
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cat /etc/passwd | cut -d : -f 1 | awk '{ system("passwd -S " $0) }' | grep -e "\sL\s"
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echo
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}
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function unlocked_users {
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echo "Unlocked users:"
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cat /etc/passwd | cut -d : -f 1 | awk '{ system("passwd -S " $0) }' | grep -v -e "\sL\s"
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echo
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}
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function nologin_users {
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echo "Users with nologin:"
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cat /etc/passwd | grep /nologin
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echo
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}
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while getopts ":hi:x:alun" opt;
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do
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case $opt in
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h) help ;;
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i) user_info ;;
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x) eXtended ;;
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a) all_users ;;
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l) locked_users ;;
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u) unlocked_users ;;
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n) nologin_users ;;
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\?)
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echo "Invalid option."
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exit 1 ;;
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:)
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echo "Option -$OPTARG requires an argument." ;;
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esac
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done
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if [ -z "$1" ]
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then
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help
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fi
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