적수네 동네 - 질문과 답변 [ 게시물 수정 ]

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안녕하십니까?
 스크립트를 짜다가 막히는 부분이 있어서 이렇게 질문을 합니다.
아래에 보이는 스크립트는 로그인과 로그아웃을 자동으로 감지해서 화면에 
아이디와 터미널, 그리고 시간을 표시해주는 스크립트입니다. 다른부분은 
다 잘 되는데 가장 중요한 로그인과 로그아웃부분에 표시가 안되네요. 
무엇이 문제인지...
 혹시 아시는분은 답변주시면 감사하겠습니다.
 # This script was made by Soonchul Kwon (skwon01).
# The name of this script is wd.
#
# This script checks users who log in and log out every
# ten second and displays updated status which include
# users&#039; names, Terminals, and Time.
 #!/bin/ksh
. .ksh_lib
 clear
BBLUE ; BOX 1 1 20 39 .  ; RESET
BBLUE ; BOX 1 41 20 79 . ; RESET
BBLUE ; BOX 22 1 24 79 . ; RESET
LOCATE 2 14 ; BRED    ; echo "Log In Window" ; RESET
LOCATE 2 53 ; BRED    ; echo "Log Out Window" ; RESET
LOCATE 4 2  ; BCYAN   ; echo "Name     Terminal     Time           "
LOCATE 4 42 ; BCYAN   ; echo "Name     Terminal     Time           "
LOCATE 23 2 ; BRED    ; echo "Number of Users : " ; RESET
 pos1=5
pos2=5
blk="                                     "
name=`cat .hid | awk -F"|" &#039;{print $2}&#039;`
terminal=`cat .hid | awk -F"|" &#039;{print $3}&#039;`
time1=`cat .hid | awk -F"|" &#039;{print $6,$7,$8}&#039;`
time2=`cat .hid | awk -F"|" &#039;{print $6,$7,$8,$9,$10}&#039;`
reform=`cat .diff_file | tr -s &#039; &#039; &#039;|&#039;`
comp1=`cut -c1 .hid`
comp2=`awk -F"|" &#039;{print $11}&#039; .hid`
comp3=`awk -F"|" &#039;{print $9}&#039; .hid`
 last -100 -R > info1
while true ; do
   sleep 10
   last -100 -R > info2
   number_users=`who | cut -c1-8 | sort -u | wc -l`
   diff info1 info2 > $HOME/.diff_file
   if [ -s $HOME/.diff_file ] ; then
      for mark in $reform ; do
      echo $mark > $HOME/.hid
      if [ $comp1 = ">" -a $comp2 = "logged" ] ; then # <= 요부분이 문제인것 같은데...
         if [ $pos1 -ne 15 ] ; then
            LOCATE pos1 2 ; FYELLOW ; echo "$name    $terminal  $time1" ; RESET
            (( pos1 = pos1 + 1 ))
         else
            ere=5
            while [ $ere -eq 16 ] ; do
                LOCATE $ere 2 echo $blk
                (( ere = ere + 1 ))
            done
            pos1=5
         fi
      else
         if [ $comp3 = "-" -a $comp1 = ">" ] ; then # <= 요부분도 이상한 것 같고...
            if [ $pos2 -ne 15 ] ; then
               LOCATE $pos2 42;FYELLOW;echo "$name    $terminal  $time2";RESET
               (( pos2 += 1 ))
            else
               ere=5
               while [ $ere -eq 16 ] ; do
                   LOCATE $ere 2 echo $blk
                   (( ere += 1 ))
               done
               pos2=5
            fi
         fi
      fi
      done
   fi
   cp /dev/null .diff_file
   cp info2 info1
   LOCATE 23 20 ; BYELLOW ; echo $number_users ; RESET
done
 #############################.ksh_lib###########################
 ####################################aliases###################################
alias -x CLS=&#039;printf      "�33[2J" ;printf "�33[%d;%dH" 1 1&#039;
alias -x BOLD=&#039;printf     "�33[1m"&#039;
alias -x BLINK=&#039;printf    "�33[5m"&#039;
alias -x REVERSE=&#039;printf  "�33[30m" ;printf "�33[47m"&#039; #black & white
alias -x REVERSE1=&#039;printf "�33[7m"&#039;                     #color
alias -x ITALICS=&#039;printf  "�33[2m"&#039;
alias -x RESET=&#039;printf    "�33[0m"&#039;
alias -x INVIS=&#039;printf    "�33[8m"&#039;
#******************** ForGround Colors ***********************
alias -x FBLACK=&#039;printf   "�33[30m"&#039;
alias -x FRED=&#039;printf     "�33[31m"&#039;
alias -x FGREEN=&#039;printf   "�33[32m"&#039;
alias -x FYELLOW=&#039;printf  "�33[33m"&#039;
alias -x FBLUE=&#039;printf    "�33[34m"&#039;
alias -x FMAGENTA=&#039;printf "�33[35m"&#039;
alias -x FCYAN=&#039;printf    "�33[36m"&#039;
alias -x FWHITE=&#039;printf   "�33[37m"&#039;
#******************** BackGround Colors ***********************
alias -x BBLACK=&#039;printf   "�33[40m"&#039;
alias -x BRED=&#039;printf     "�33[41m"&#039;
alias -x BGREEN=&#039;printf   "�33[42m"&#039;
alias -x BYELLOW=&#039;printf  "�33[43m"&#039;
alias -x BBLUE=&#039;printf    "�33[44m"&#039;
alias -x BMAGENTA=&#039;printf "�33[45m"&#039;
alias -x BCYAN=&#039;printf    "�33[46m"&#039;
alias -x BWHITE=&#039;printf   "�33[47m"&#039;