Simple Linux User Management

dynmotd.sh

#!/bin/bash
# echo "" > /usr/bin/dynmotd; chmod +x /usr/bin/dynmotd; nano /usr/bin/dynmotd

USER=`whoami`
MEMORY1=`free -t -m | grep "buffers/cache" | awk '{print $3" MB";}'`
MEMORY2=`free -t -m | grep "Mem" | awk '{print $2" MB";}'`

# time of day
HOUR=$(date +"%H")
if [ $HOUR -lt 12  -a $HOUR -ge 0 ]; then
	TIME="morning"
elif [ $HOUR -lt 17 -a $HOUR -ge 12 ]; then
	TIME="afternoon"
else 
    TIME="evening"
fi

# System uptime
uptime=`cat /proc/uptime | cut -f1 -d.`
upDays=$((uptime/60/60/24))
upHours=$((uptime/60/60%24))
upMins=$((uptime/60%60))

# System load
LOAD1=`cat /proc/loadavg | awk {'print $1'}`
LOAD5=`cat /proc/loadavg | awk {'print $2'}`
LOAD15=`cat /proc/loadavg | awk {'print $3'}`

echo "
===================================================================
 - Good $TIME $USER :-)
===================================================================
 - Hostname............: `hostname -f`
 - Release.............: `uname -a | awk '{print $1" "$3" "$12}'`
 - Users...............: Currently `users | wc -w` user(s) logged on
===================================================================
 - Current user........: $USER
 - CPU usage...........: $LOAD1, $LOAD5, $LOAD15 (1, 5, 15 min)
 - Memory used.........: $MEMORY1 / $MEMORY2
 - Swap in use.........: `free -m | tail -n 1 | awk '{print $3}'` MB
 - Processes...........: `ps -Afl | wc -l` running
 - System uptime.......: $upDays days $upHours hours $upMins minutes
===================================================================
"

uadd.sh

#!/bin/bash
# clear; echo "" > /usr/bin/uadd; chmod +x /usr/bin/uadd; nano /usr/bin/uadd
# 
# Contoh penggunaan: uadd [nama] [sesi] [masa_aktif]
# 

## Cek Root Dulu
if [[ $(/usr/bin/id -u) -ne 0 ]]; then
    echo "Only root may add a user to the system"
    exit 1
fi

group_1=`egrep "^single" /etc/group >/dev/null`
group_2=`egrep "^double" /etc/group >/dev/null`

## Validasi dulu
if [[ -n $1 && -n $2 && -n $3 ]] ; then
	## Buat Group
	if [[ -n "$group_1" && -n "$group_2" ]] ; then
		groupadd -g 6001 single; groupadd -g 6002 double
		echo "@single hard nproc 1" > /etc/security/limits.conf
		echo "@double hard nproc 2" >> /etc/security/limits.conf
	fi

	## Buat User
	egrep "^$1" /etc/passwd >/dev/null
	if [ $? -eq 0 ]; then
		echo "User: $1 exists!"
		exit 1
	else
		## Password dan Grup
		if [[ -n $4 ]] ; then
			paswrd=$4
		else
			paswrd=`cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 6 | head -n 1`
		fi

		if [ $2 = 1 ]
		then
			useradd -r -s /bin/false -d /bin/null -g single $1
		elif [ $2 = 2 ] 
		then
			useradd -r -s /bin/false -d /bin/null -g double $1
		else 
			echo "Sesi Login hanya 1 atau 2"
			exit 2
		fi

		## Set password dan Masa Aktif
		echo "$1:$paswrd" | chpasswd
		chage -M $3 $1

		## Cetak ke layar
		info_pas_exp=`chage -l $1 | grep "Password expires" | tr -s [:space:]`
		info_pas_ina=`chage -l $1 | grep "Password inactive" | tr -s [:space:]`
		if [ $? -eq 0 ]; then
			echo "------------------------------------------"
			echo -e "User: $1 created with pass: $paswrd"
			echo $info_pas_exp
			echo $info_pas_ina
			echo "------------------------------------------"
		else
			echo "Gagal membuat user :-("
			exit 3
		fi
	fi
else 
	echo "Contoh penggunaan: uadd [nama] [sesi] [masa_aktif]"
	exit 0
fi

ugen.sh

#!/bin/bash
# clear; echo "" > /usr/bin/ugen; chmod +x /usr/bin/ugen; nano /usr/bin/ugen
# 

## Cek Root Dulu
if [[ $(/usr/bin/id -u) -ne 0 ]]; then
    echo "Only root may add a user to the system"
    exit 1
fi

SENDTOMAIL=false
EMAIL_FROM="[email protected]"
EMAIL_FRWD="[email protected]"

group_1=`egrep "^single" /etc/group >/dev/null`
group_2=`egrep "^double" /etc/group >/dev/null`

## Buat Group
if [[ -n "$group_1" && -n "$group_2" ]] ; then
	groupadd -g 6001 single; groupadd -g 6002 double
	echo "@single hard nproc 1" > /etc/security/limits.conf
	echo "@double hard nproc 2" >> /etc/security/limits.conf
fi

## Buat User
read -p "Masukkan Username  : " username
egrep "^$username" /etc/passwd >/dev/null
if [ $? -eq 0 ]; then
	echo "User: $username exists!"
	exit 1
else
	## Input Password
	read -s -p "Masukkan Password  : " get_pass
	if [ -n "$get_pass" ]; then
		paswrd=$get_pass
	else 
		paswrd=`cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 6 | head -n 1`
	fi
	
	## Input Jenis Grup
	echo ""
	read -p "Sesi Login (1/2)   : " grup_tipe
	if [ $grup_tipe = 1 ] 
	then
		useradd -r -s /bin/false -d /bin/null -g single $username
	elif [ $grup_tipe = 2 ] 
	then
		useradd -r -s /bin/false -d /bin/null -g double $username
	else 
		echo "Sesi Login hanya 1 atau 2"
		exit 1
	fi

	## Set password dan Masa Aktif
	read -p "Masa aktif (hari)  : " psswd_age
	echo "$username:$paswrd" | chpasswd
	chage -M $psswd_age $username

	## Cetak ke layar
	info_pas_exp=`chage -l $username | grep "Password expires" | tr -s [:space:]`
	info_pas_ina=`chage -l $username | grep "Password inactive" | tr -s [:space:]`
	if [ $? -eq 0 ]; then
		echo ""
		echo "------------------------------------------"
		echo -e "User: $username created with pass: $paswrd"
		echo $info_pas_exp
		echo $info_pas_ina
		echo "------------------------------------------"
		## Kirim Email
		if [ $SENDTOMAIL = true ]; then
			read -p "Kirim via email ke : " email_to
			echo "------------------------------------------"
			isi_email="Subject:User Created\nUser $username created with pass $paswrd\n$info_pas_exp\n$info_pas_ina"
			echo -e $isi_email | ssmtp -f $EMAIL_FROM -F "Admin Ospian" $EMAIL_FRWD
			[ -n "$email_to" ] && echo -e $isi_email  | ssmtp -f $EMAIL_FROM -F "Admin Ospian" $email_to
			echo "Email terkirim :-)"
		fi
	else
		echo "Gagal membuat user :-("
		exit 1
	fi
fi

uinfo.sh

#!/bin/bash
# clear; echo "" > /usr/bin/uinfo; chmod +x /usr/bin/uinfo; nano /usr/bin/uinfo
# 
# Contoh penggunaan: uinfo [nama]
# 

## Cek Root Dulu
if [[ $(/usr/bin/id -u) -ne 0 ]]; then
    echo "Only root may add a user to the system"
    exit 1
fi

if [ "$1" = "" ]
then
    echo
    echo "Usage: $0 USERNAME"
    echo
    echo "Example:  $0 kam"
    echo
    exit 1
fi

Username=`cat /etc/passwd | grep -Ew ^$1 | cut -d":" -f1`

if [ "$Username" = "" ]
then
    echo "Username $1 doesn't exist"
    exit 2
fi

Userid=`cat /etc/passwd | grep -Ew ^$Username | cut -d":" -f3`
UserPrimaryGroupId=`cat /etc/passwd | grep -Ew ^$Username | cut -d":" -f4`
UserPrimaryGroup=`cat /etc/group | grep :"$UserPrimaryGroupId": | cut -d":" -f1`
UserInfo=`cat /etc/passwd | grep -Ew ^$Username | cut -d":" -f5`
UserHomeDir=`cat /etc/passwd | grep -Ew ^$Username | cut -d":" -f6`
UserShell=`cat /etc/passwd | grep -Ew ^$Username | cut -d":" -f7`
UserGroups=`groups $Username | awk -F": " '{print $2}'`
PasswordExpiryDate=`chage -l $Username | grep "Password expires" | awk -F": " '{print $2}'`
LastPasswordChangeDate=`chage -l $Username | grep "Last password change" | awk -F": " '{print $2}'`
AccountExpiryDate=`chage -l $Username | grep "Account expires" | awk -F": " '{print $2}'`
HomeDirSize=`du -hs $UserHomeDir | awk '{print $1}'`

echo
printf "%-25s : %5s  [User Id - %s]\n" "Username" "$Username" "$Userid"
printf "%-25s : %5s\n" "User Info" "$UserInfo"
echo
printf "%-25s : %5s  [Group Id - %s]\n" "User's Primary Group" "$UserPrimaryGroup" "$UserPrimaryGroupId"
printf "%-25s : %5s\n" "User is Member of Groups" "$UserGroups"
echo
printf "%-25s : %5s  [Size Occupied - %s]\n" "Home Directory" "$UserHomeDir" "$HomeDirSize"
printf "%-25s : %5s\n" "Default Shell" "$UserShell"
echo
printf "%-25s : %5s\n" "Last Password Changed On" "$LastPasswordChangeDate"
printf "%-25s : %5s\n" "Password Expiry Date" "$PasswordExpiryDate"
printf "%-25s : %5s\n" "Account Expiry Date" "$AccountExpiryDate"
echo

ulists.sh

#!/bin/bash
# clear; echo "" > /usr/bin/ulists; chmod +x /usr/bin/ulists; nano /usr/bin/ulists
# 

## Cek Root Dulu
if [[ $(/usr/bin/id -u) -ne 0 ]]; then
    echo "Only root may add a user to the system"
    exit 1
fi

echo -e "---------------------------------------------------------------------------------"
printf "%-3s %-15s %-15s %-15s %-15s %-15s \n" "##" "[Username]" "[Group]" "[Shell]" "[PassChanged]" "[PassExpired]"
echo -e "---------------------------------------------------------------------------------"
no=0
awk -F: '($3>=200) && ($3!=65534)' /etc/passwd | cut -d":" -f1 | \
  while read Username ; do
  	no=$(( $no + 1 ))
	Userid=`cat /etc/passwd | grep -Ew ^$Username | cut -d":" -f3`
	UserPrimaryGroupId=`cat /etc/passwd | grep -Ew ^$Username | cut -d":" -f4`
	UserPrimaryGroup=`cat /etc/group | grep :"$UserPrimaryGroupId": | cut -d":" -f1`
	UserInfo=`cat /etc/passwd | grep -Ew ^$Username | cut -d":" -f5`
	UserHomeDir=`cat /etc/passwd | grep -Ew ^$Username | cut -d":" -f6`
	UserShell=`cat /etc/passwd | grep -Ew ^$Username | cut -d":" -f7`
	UserGroups=`groups $Username | awk -F": " '{print $2}'`
	PasswordExpiryDate=`chage -l $Username | grep "Password expires" | awk -F": " '{print $2}'`
	LastPasswordChangeDate=`chage -l $Username | grep "Last password change" | awk -F": " '{print $2}'`
	AccountExpiryDate=`chage -l $Username | grep "Account expires" | awk -F": " '{print $2}'`
	#HomeDirSize=`du -hs $UserHomeDir | awk '{print $1}'`
	printf "%-3s %-15s %-15s %-15s %-15s %-15s \n" "$no" "$Username" "$UserPrimaryGroup" "$UserShell" "$LastPasswordChangeDate" "$PasswordExpiryDate"
  done
echo -e "---------------------------------------------------------------------------------"
echo -e "Script by: [email protected]                                http://aris.ospian.com/"
echo -e "---------------------------------------------------------------------------------"
echo -e "Untuk menambah user gunakan perintah  : uadd [nama] [sesi] [masa_aktif]"
echo -e "Untuk menghapus user gunakan perintah : userdel [nama]"
echo -e "Untuk ganti password gunakan perintah : passwd [nama]"
echo -e "---------------------------------------------------------------------------------"
echo

umon.sh

#!/bin/bash
# clear; echo "" > /usr/bin/umon; chmod +x /usr/bin/umon; nano /usr/bin/umon
# 

## Cek Root Dulu
if [[ $(/usr/bin/id -u) -ne 0 ]]; then
    echo "Only root may add a user to the system"
    exit 1
fi

echo -e "---------------------------------------------------------------------------------"
printf "%-15s %-15s %-15s %-15s \n" "[USER]" "[KONEK VIA]" "[LOGIN SEJAK]*" "[INFO]"
echo -e "---------------------------------------------------------------------------------"
#1                       3               4  5   6   7         5
#sisadmin pts/3        180.253.3.115    Thu Dec 19 00:31   still logged in   
#hafiez   pts/0        127.0.0.1        Mon Dec 16 12:41 - 12:41


ps aux | grep "sshd" | sort -k 72
tgl_skrg=`date | awk '{print $3}'`
last -n 20 -a dena | awk -F: '($6=$tgl_skrg)'
last | grep -Ew ^dena | awk '{print $1}'
last | grep 'pts' | grep '127.0.0.1' 
| \
  while read Username ; do
  	username=`last -50 | grep -Ew ^$Username | cut -d":" -f1`
  	konekvia=`last -50 | grep $Username | awk '{print $3}'`
  	loginsjk=`last -50 | grep $Username | awk '{print $7 $6 $5}'`
  	info_pid=`last -50 | grep $Username | awk '{print $1}'`
	printf "%-15s %-15s %-15s %-15s \n" "$username" "$konekvia" "$loginsjk" "$info_pid"
  done
echo -e "---------------------------------------------------------------------------------"
echo -e "Kick user : kill -9 <PID>"
echo -e "Contohnya : kill -9 1234"
echo -e "---------------------------------------------------------------------------------"
echo -e "*) Waktu Server                                             [by: [email protected]]"
echo -e "---------------------------------------------------------------------------------"


#-------------------------------------------------------------------
#[USER]     [KONEK VIA]             [LOGIN SEJAK]*      [INFO]
#-------------------------------------------------------------------
#superman   123.345.567.789:91827   00:00:00 30 Nov     PID[1234]
#superman   123.345.567.789:91827   00:00:00 30 Nov     PID[1234]
#superman   123.345.567.789:91827   00:00:00 30 Nov     PID[1234]
#-------------------------------------------------------------------

usexpt.sh

#!/bin/bash
# echo "" > /usr/bin/usexpt; chmod +x /usr/bin/usexpt; nano /usr/bin/usexpt
# 

## Cek Root Dulu
if [[ $(/usr/bin/id -u) -ne 0 ]]; then
    echo "Only root may add a user to the system"
    exit 1
fi

if [[ -n $1 ]]; then
	cd $1
	now="$(date +'%Y_%m_%d')"
	nma="userlist-$now.zip"
	awk -F: '($3>=500) && ($3!=65534)' /etc/passwd > passwd.new
	awk -F: '($3>=500) && ($3!=65534)' /etc/group > group.new
	awk -F: '($3>=500) && ($3!=65534) {print $1}' /etc/passwd | grep -f - /etc/shadow > shadow.new
	zip $nma *.new; rm *.new
	echo "User berhasil di-export ke: $1/$nma"
else 
	echo "Contoh penggunaan: usexpt [lokasi_folder_tujuan]"
	exit 2
fi

usimpt.sh

#!/bin/bash
# echo "" > /usr/bin/usimpt; chmod +x /usr/bin/usimpt; nano /usr/bin/usimpt
# 

## Cek Root Dulu
if [[ $(/usr/bin/id -u) -ne 0 ]]; then
    echo "Only root may add a user to the system"
    exit 1
fi

if [[ -n $1 ]]; then
	cd /tmp; unzip $1
	cat passwd.new >> /etc/passwd
	cat group.new >> /etc/group
	cat shadow.new >> /etc/shadow

	cat /etc/passwd > passwd.join
	cat /etc/group > group.join
	cat /etc/shadow > shadow.join

	cat passwd.join | awk '{ if (!seen[$0]++) print}' > passwd.ok
	cat group.join | awk '{ if (!seen[$0]++) print}' > group.ok
	cat shadow.join | awk '{ if (!seen[$0]++) print}' > shadow.ok

	cat passwd.ok > /etc/passwd
	cat group.ok > /etc/group
	cat shadow.ok > /etc/shadow
	rm *.new *.join *.ok
	echo "User berhasil di-import !!"
else 
	echo "Contoh penggunaan: usimpt [lokasi_file_zip_backup]"
	exit 2
fi