Shell Programming and Scripting

#!/bin/bash
#=========================================================================================================
# Rsync File Restore Script [Unfinished]                   ********************************************* #
# This script is in /raid0/data/backup/                    *                                           * #
#                                                          * Author: Johnny J. Davis                   * #
#                                                          * Date Created:                             * #
# [ Last Modified ]                                        * Script name: filerestore_take2.sh         * #
# Date:                    12/18/12                        *            [incomplete]                   * #
# Time:                     9:32 AM                        *                                           * #
#                                                          ********************************************* #                                          
##########################################################################################################

#=========================================================================================================
#                                       ****[Begin Variables]****
#=========================================================================================================
LogDns1=/raid0/data/backup/logs/dns1_file_restore.log
LogServices=/raid0/data/backup/logs/services_file_restore.log
LogInet1=/raid0/data/backup/logs/inet1_file_restore.log
LogUser=/raid0/data/backup/logs/UserLog.log
NoLog="echo No log present for $secondhalf"             # The variable $secondhalf will be assigned later
RSYNC=/usr/bin/rsync                                    # on as a result of user input. 
DATE=/bin/date
ECHO=/bin/echo
USER=root
#---------------------------------------------------------------------------------------------------------
# {End Variables}
#=========================================================================================================
#                                       ****[Begin Functions]****
#=========================================================================================================
# Function to remove previous log, if present (DNS1)
removeLogDns1(){
if [ -a $LogDns1 ]
  then
    rm $LogDns1
  else
    echo "No log present for Dns1!"
fi
}
# Function to remove previous log, if present (SERVICES)
removeLogServices(){
if [ -a $LogServices ]
  then
    rm $LogServices
  else
    echo "No log present for Services!"
fi
}
# Function to remove previous log, if present (INET1)
removeLogInet1(){
if [ -a $LogInet1 ]
  then
    rm $LogInet1
  else
    echo "No log present for Inet1!"
fi
}        
#-------------------------------------------------------------(Step 6)------------------------------------
# Function that confirms the intention to restore and restores the file  
# placed in the variable fileName by the fileCheck function in step 5b.
restoreFile(){
echo -n "Restore $fileName? [Y/N]?> "
read -r answer
 case $answer in
      Y ) echo "Restoring the file $fileName!"                  # Will be Adding additional commands here
          ;;
      N ) echo "Action aborted, nothing restored!"; makeSelection
          ;;
      * ) echo "Must answer with a Y or N!" 
          ;;
 esac
#exit 0; sh /raid0/data/backup/filerestore_take2.sh
} 
#-------------------------------------------------------------(Step 5a)---------------------------
# Function that changes the current working directory to the choice made in step 2, if in fact
# it was a directory.
cdNow(){
if [ -d $choice ]
 then
   cd $choice; echo "Changed Directory to $PWD"; makeSelection
 else                                                  # If the choice from step 2 is not a directory and
   echo "This is not a directory!"                     # manages to make it to this step, the script will     
fi                                                     # terminate with echo.
}
#-------------------------------------------------------------(Step 5b)---------------------------
# Function checks to see if the choice from step 2, is in fact a file. If so, it stores the file
# name in a variable called fileName and proceeds to call the restoreFile function in step 6.
fileCheck(){
if [ -f $choice ]
 then
   fileName=$choice; restoreFile
 else                                                         # If the choice from step 2 is not a file
   echo "This is not a file!"                                 # and manages to make it to this step, the
fi                                                            # script will terminate with echo.
}  
#-----------------------------------------------------------(Step 4)--------------------------------------
# Function that determines if the selection from step 1 is a file 
# or directory and moves to next function based on the result.
checkType(){
while [ -d $choice ]                                   # Checks the variable to see if it is a directory.
  do                                                   # If so, it calls the cdNow function, in step 5a. 
   cdNow
   break;
  done
  
while [ -f $choice ]                                   # Checks the variable to see if it is a file. If so,
  do                                                   # it calls the fileCheck function, in step 5b.
   fileCheck
   break;
  done
}
#------------------------------------------------------------(Step 3)-------------------------------------
# Function checks for existance of files.
anyFiles(){  
ls ./* > /dev/null 2>&1
  if [ "$?" = "0" ]
   then
     checkType
   else
     echo "No files exist here!"
  fi
}
#------------------------------------------------------------(Step 2)-------------------------------------
# Function that allows selecting either a file or directory.
makeSelection(){
PS3="Enter choice [ctrl-c quits]> "
select choice in `for i in $(ls -p ./); do echo ${i%%.*}; done`   
 do echo; break; done
anyFiles
}
#---------------------------------------------------------------------------------------------------------
# {End Functions}
#=========================================================================================================
#                                     ****[Script Start]****  (Step 1)
#=========================================================================================================
#
echo
echo
echo
clear
echo "Current Working Directory: $PWD"       
echo
echo "Please select file or directory."
echo
echo "[Selecton Menu]"
makeSelection

echo "Select file - or Q to quit"
select file in `ls -Q $mydir`
do
    if [ $REPLY = "Q" ] then
        ACTION=Q 
        break
    fi
    if [ -z "$file" ]
    then
          echo "Invalid choice"
     else
          break
     fi
done

entry_explore(){
 
  for entry in "$entry"/.* "$entry"/*
   do
    case "$entry" in
     (*/.|*/..)
       continue
      ;;
     (*)
       if [ -f "$entry" ]
        then
         echo "Restore file '$entry' ? \c"
         read reply
         case "$reply" in
          ([Yy]*)
            entry_restore
           ;;
          (*)
            # nothing
           ;;
          esac
         continue
        fi
 
       if [ -d "$entry" ]
        then
         entry_explore
        fi
      ;;
     esac
   done
 }
 
entry_restore(){
  # restore one file "$entry"
 }
 
########### MAIN ########
 
for entry in "$@"
 do
  entry_explore
 done

if [-z -n "$(shopt -s nullglob; echo $entry/*)" ]
then
    echo Nothing is directory $entry
fi