不懂这个脚本,每解析一行得2分.

#!/bin/bash

#

# The following shell variables have to be defined and exported before this shell script is called.

# Example values are show below the variable name

#

# EnvSH

#   '/cib/uxprod/java/bin/env.sh'

# ScriptName

#   'loadTxnHistory.sh'

# OnException

#   'doMail_oper "CIB0123E %Y%m%d %T ($ScriptName:exception)"'

# OnComplete

#   'doMail "CIB0113I %Y%m%d %T ($ScriptName:completed)"'

# OnCompleteAfterDelay

#   'doMail "CIB0113I %Y%m%d %T ($ScriptName:completed after delay)"'

# OnMissingFile

#   'doMail "CIB0112E %Y%m%d %T ($ScriptName:file missing)"'

# OnFileDelay

#   'doMail "CIB0111I %Y%m%d %T ($ScriptName:file not ready yet)"'

# MaxWaitMinutes

#   240

# AlertMinutes

#   60

# OneMinute

#   60

# LogFilePath

#   '/project/CIB/log/loadTxnHistory.%Y%m%d%H%M%S.log'

# InputDir

#   '/project/CIB/ftp/rcv/'

# BackupDir

#   '/project/CIB/ftp/backup/rcv/'

# BackupExtension

#   '.%Y%m%d%H%M%S'

# WaitFileSet

#   'DLDHY[0-9][0-9].EOF'

# InputFileSetReplace

#   's/DLDHY\(..\)\.EOF/KKKHY\1.TXT:LLLHY\1.TXT/'

# WaitFileSet2

#   'ABC2XYZ.RRR.D[0-9][0-9][0-9][0-9][0-9][0-9].EOF'

# InputFileSet2Replace

#   's/ABC2XYZ/UVW2XYZ/; s/.EOF/.TXT/'

# doImportCallback() { ... }

#   a shell function to be exported from the caller shell script

#

# To call this script, type the following statements

#

# export ScriptName OnException OnComplete OnCompleteAfterDelay ...

# export -f doImportCallback

# ./GenericImport.sh

#





is_defined() {

   eval val="\${$1}"

   if [ "$val" =  "" ]; then return 1; else return 0; fi

}

is_defined EnvSH && . $EnvSH

is_defined OneMinute || OneMinute=60

MailContent="$cronjob_subject_prefix Refer to CCB Manual for the Recovery Procedure"

EOFFilelist=""

InputSetList=""

DelayFlag=""



doMail() {

  echo $MailContent | mailx -s "$*" $cronjob_maillist

}

doMail_oper() {

  echo $MailContent | mailx -s "$*" $cronjob_maillist $oper_maillist

}

doMail_attach() {

  file=$1 ; shift

  if [ -r "$file" ]; then

     cmd="echo $MailContent; uuencode $file `basename $file`"

  else

     cmd="echo $MailContent; echo $file not found"

  fi

  eval "$cmd" | mailx -s "$*" $cronjob_maillist

}

doBackup() {

   file="$1"

  #[ -r "$file" ] && mv $InputDir/$file $BackupDir/$file$BackupExt

}

handle_when_defined() {

   eval command="\${$1}"

   if [ "$command" =  "" ]; then 

     return 1

   else

     eval `date +"$command"`

   fi

}

wait_for_files() {

   elapsed_time=0

   while :

   do 

     # convert to input file list

     cd $InputDir

     for j in $WaitFileSet; do

       if test -r "$j" ; then 

          t=`echo "$j" | sed "$InputFileSetReplace"`

          InputSetList="$InputSetList $j:$t"

       fi

     done

     for j in $WaitFileSet2; do

       if test -r "$j" ; then 

          t=`echo "$j" | sed "$InputFileSet2Replace"`

          InputSetList="$InputSetList $j:$t"

       fi

     done

     is_defined InputSetList && return 0

     if [ $elapsed_time -ge $MaxWaitMinutes ] ; then 

       echo "== OnMissingFile:eof"

       handle_when_defined OnMissingFile

       return -1;

     elif  [ $elapsed_time -eq $AlertMinutes ] ; then

       echo "== OnFileDelay"

       handle_when_defined OnFileDelay

       AlertMinutes=`expr $AlertMinutes + $AlertMinutes`

       DelayFlag=1

     fi

     sleep $OneMinute;

     elapsed_time=`expr $elapsed_time + 1` 

   done

}



OrigDirectory=`pwd`

cd $InputDir

LogFilePath=`date +"$LogFilePath"`

BackupExt=`date +"$BackupExtension"`

exec >$LogFilePath 2>&1

echo "$ScriptName starts at "`date`



if wait_for_files; then

  for InputSet in $InputSetList; do

    EOFFile=""

    InputFiles=`echo $InputSet | tr ':' ' '`

    InputSetReady=true 

    ImportCommand="doImportCallback"

    echo "InputSet=$InputSet"

    echo "InputFiles=$InputFiles"

    for f in $InputFiles ; do

      [ ! -r "$f" ] && InputSetReady="" 

      if is_defined EOFFile ; then

        ImportCommand="$ImportCommand $f"

      else

        EOFFile=$f

        echo "EOFFile=$EOFFile"

      fi

    done

    if is_defined InputSetReady 

    then 

      # run the import command and move files to backup folder

      # the doImportCallback() function is run in a subshell to prevent changes within doImportCallback()

      # to affect other part of this script

      echo "$ImportCommand"

      ( eval "$ImportCommand" )

      for f in $InputFiles ; do

        doBackup $f

      done

    else

      echo "== OnMissingFile:input"

      handle_when_defined OnMissingFile

    fi

  done

  # check for exception

  if grep Exception $LogFilePath > /dev/null; then

    echo "== OnException"

    handle_when_defined OnException

  else

    # complete w/o exception

    if is_defined DelayFlag ; then

      echo "== OnCompleteAfterDelay"

      handle_when_defined OnCompleteAfterDelay

    else

      echo "== OnComplete"

      handle_when_defined OnComplete

    fi

  fi

fi

echo "$ScriptName ends at "`date`