哪位大哥帮我读读这段shell

learningaix

shell 1
#-------------------------------------------------------------------------
# Program Name.........SUBMIT System
# Filename.............submit
# Version..............2.00
# Version Date.........January 12, 1999
# Author...............Kevin M. Hulse

#----------------------------------------------------------------------------  
/abbdaemon/dostounix $1
hostappf=/abbdaemon/`hostname`.va
#
#----------------------------------------------------------------------------------
# Change, Kevin M. Hulse, Nov. 26, 1996
#
# Error messages in the submit.log file were not showing the program name
# requested (invalid program name error message).  This was because the
# program variable was not assigned.  Use read to get the requested program
# name from the file, then grep the valid application list file (.va) to
# determine if it is a valid program name.
#
#program=`fgrep -x -f $hostappf $1`
#----------------------------------------------------------------------------------
read -r program < $1
grep $program $hostappf  
if [ "$?" -eq 0 ]
then
   echo " "
   echo "*****************************************************************"
   echo Start: $program, input=$1, pid= $$, `date`
   echo "*****************************************************************"
   echo " "
   #--------------------------------------------
   #   Get the output file names.
   #--------------------------------------------
   output=`grep ssoutputname $1 | awk -F= '{ print $2 }'`
   output2=`grep ssoutput2name $1 | awk -F= '{ print $2 }'`
   output3=`grep ssoutput3name $1 | awk -F= '{ print $2 }'`
   #-------------------------------------------------------------
   #   Get the client/server output file transfer directory
   #-------------------------------------------------------------
   commdir="`echo $output | /abbdaemon/getpath`"
   #----------------------------------------------------
   #   See if we need to change our working directory.
   #   If so, we need to move our input file there also.
   #----------------------------------------------------
   workdir=`grep ssworkdir $1 | awk -F= '{ print $2 }'`
   if [ -n "$workdir" ]
   then
      #--------------------------------------------------
      #   See if we need to create the directory we want
      #   to work out of.
      #--------------------------------------------------
      if [ -d "$workdir" ]
      then
         #--------------------------------------------------
         #   Move input file to the requested working dir.
         #--------------------------------------------------
         mv $1 "$workdir"/$1
         if [ "$?" -eq 0 ]
         then
            echo .      Moved input file $1 to directory $workdir
         else
            echo .      Error Moving input file $1 to directory $workdir
         fi
         #--------------------------------------------------
         #   Change directory to the requested working dir.
         #--------------------------------------------------
         cd "$workdir"
         if [ "$?" -eq 0 ]
         then
            echo .      Changed Directory To: $workdir
         else
            echo .      Error Changing Directory to $workdir
         fi
      else
         #--------------------------------------------------------
         #   Error message, directory does not exist.
         #   Send error message in user output file back to user.
         #--------------------------------------------------------
         echo "submit-shell-Error:"                     > $1.out1
         echo "Submit_Shell will not execute $program"  >> $1.out1
         echo "Because the data directory $workdir \c"  >> $1.out1
         echo "does not exist.\n\n"                     >> $1.out1
         echo "Check the contract number input \c"      >> $1.out1
         echo "on the Submit UserData Screen.\n"        >> $1.out1
         echo "If a new contract number needs \c"       >> $1.out1
         echo "to be added to the system,"              >> $1.out1
         echo "Contact Engineering Systems \c"          >> $1.out1
         echo "& Automation Help Line, x-4357"          >> $1.out1
         #--------------------------------------------------------
         #   Error message, directory does not exist.
         #--------------------------------------------------------
         echo "Aborting $program because directory $workdir \c"
         echo "does not exist.\n\n"
         cp $1.out1 $output
         ls -al $1.out1
         ls -al $output
         chmod 777 $output
         rm $1*
         exit
      fi
   fi
   #--------------------------------------------
   #   Remove the system info from the file.
   #--------------------------------------------
   cat $1 | /abbdaemon/stripsysteminfo > $1.tmp
   mv $1.tmp $1
   #--------------------------------------------
   #   Execute the program.
   #--------------------------------------------
   $program $1 $1.out1 $1.out2  $1.out3
   echo " "
   echo "******************************************************************"
   echo  Stop: input= $1, program= $program, pid= $$, `date`
   echo "******************************************************************"
   echo " "
   #
   #----------------------------------------------------------------------------------
   # Change: Kevin M. Hulse, August 22, 1997
   #
   # temp prefix was added to output file name so Submit/NT would not try to retrieve
   # the file before the rename occurs.  Submit/NT searches for all files with the
   # name matching the users Novell UserName, and was grabbing the files before they
   # were fully written or renamed.
   #----------------------------------------------------------------------------------
   tempPrefix="temp"
   echo output=$output
   echo commdir=$commdir
   if [ -f "$1".out1 ]
   then
      cp $1.out1 ${commdir}${tempPrefix}$1.out1
      #echo $1.out1 copied to ${commdir}${tempPrefix}$1.out1
      sleep 2
      mv ${commdir}${tempPrefix}$1.out1 $output
      sleep 1
      #echo ${commdir}${tempPrefix}$1.out1 RENAMED TO $output
      ls -al $output
      chmod 777 $output
   fi
   if [ -f "$1".out2 ]
   then
      cp $1.out2 ${commdir}${tempPrefix}$1.out2
      #echo $1.out2 copied to ${commdir}${tempPrefix}$1.out2
      sleep 2
      mv ${commdir}${tempPrefix}$1.out2 $output2
      sleep 1
      #echo ${commdir}${tempPrefix}$1.out2 RENAMED TO $output2
      ls -al $output2
      chmod 777 $output2
   fi
   if [ -f "$1".out3 ]
   then
      cp $1.out3 ${commdir}${tempPrefix}$1.out3
      #echo $1.out3 copied to ${commdir}${tempPrefix}$1.3
      sleep 2
      mv ${commdir}${tempPrefix}$1.out3 $output3
      sleep 1
      #echo ${commdir}${tempPrefix}$1.3 RENAMED TO $output3
      ls -al $output3
      chmod 777 $output3
   fi
   rm $1*
else echo "input= $1, *** invalid program name= $program ***"
fi

shell 2
#! /bin/ksh
-                                                                    
echo locald starting, pid=$$, at `date`
cd /abbdaemon
startdate="$(date +%d)"
#
#--------------------------------------------------------------------------------
# Assign the Submit Command File based on the server name
#--------------------------------------------------------------------------------
submitShell="submit"
if [ "`hostname`" = 'larry' ]
then
   submitShell="icadsubmit"
fi
#
if [ "`hostname`" = 'curly' ]
then
   submitShell="icadsubmit"
fi
#
if [ "`hostname`" = 'lucy' ]
then
   submitShell="icadsubmit"
fi
#
#------------------------------------------------
# function SubmitFilesInDir
#------------------------------------------------
function SubmitFilesInDir {
   echo $1 | grep -i -s 'cpuser/in' > /dev/null
   if [ "$?" -eq 0 ]
   then
      #
      #--------------------------------------------------------
      # Process user data files from oldest to newest.
      #--------------------------------------------------------
      ls -1 -t -r $1 > locald.wrk
      while read userfile
      do
         echo $userfile | grep -i -s 'KMH01' > /dev/null
         if [ "$?" -eq 0 ]
         then
            cp $1/$userfile /u/kmh01/$userfile
         fi
         #---------------------------------------------------
         # change: 03/09/99, Kevin Hulse
         # Test the file size, if it is greater than zero,
         # process the file.
         #---------------------------------------------------
         #if test -s $1/$userfile
         tr -d \^M <$1/$userfile >/dev/null
         if [ "$?" -eq 0 ]
         then
            mv $1/$userfile /u/cpuser/$userfile
            if [ "$?" -eq 0 ]
            then
               chown cpuser /u/cpuser/$userfile
               chmod 770 /u/cpuser/$userfile
               if [ -s /u/cpuser/$userfile ]
               then
                  echo `hostname` Processing $userfile at `date`
                  su - cpuser << eof
                  /abbdaemon/$2 $userfile >> submit.log 2>&1 &
eof
               else
                  rm -f /u/cpuser/$userfile
               fi
            fi
         fi
      done < locald.wrk
   else
      echo "Error - SubmitFilesInDir: We are not looking at the cpuser/in file system"
   fi
   return 0
}
#
#------------------------------------------------------------------------------
#   "MAIN" Routine
#------------------------------------------------------------------------------
while [ "$startdate" = "$(date +%d)" ]
do
   SubmitFilesInDir /u/cpuser/in $submitShell
   # Delay Loop for x seconds
   sleep 3
done
rm -f ./archive/locald.*
cp locald.log ./archive/locald.$(date +%d%h%y)
#  cp /u/cpuser/submit.log ./archive/submit.$(date +%d%h%y)
rm locald.log
rm -f /u/cpuser/*