cryption

#!/bin/bash

while [ $# == 0 ];
do
echo "No arguments given"
echo "Usage: Try cryption -h for more help"	
break
done


if (( $# >= 3  )); then
    echo "Too many arguments" 
    echo "Usage: cryption -h for more help"
    exit 1
fi
for i in $1
do
	if [ $1 == "-v" -a $# != 2 ]
		then
			echo  -e "cryption --Encrypt and Decrypt files securely\nVersion: 1.01"
		break

	elif [ $1 == "-v" -a $# == 2 ]
		then

		echo "Usage: Try cryption -h for more help"
		break
	elif [ $1 == "-h" -a $# != 2 -o $1 == "--help" -a $# != 2 ]
		then
			cat /home/akshay/Documents/cryption_help
		break
	
	elif [ $1 == "-h" -a $# == 2 -o $1 == "--help" -a $# == 2 ]
		then
		echo "Usage: Try cryption -h for more help"
	fi



	if [ $1 != -e -a $1 != -d -a $1 != -h -a $1 != "--help" -a $1 != -v -a $1 != "-el"  ]
		then
			echo "Invalid option"
			echo "Try cryption -h for more help"	
		elif [ $# != 2 ]
			then
				echo "Wrong Syntax "
		echo "Usage: Try cryption -h for more help"

			fi


#FOR ENCRYPTION


for i in $2
      do
         if [ $1 == -e ] && [ $# == 2 ]  
	       then
		if [ -f $2 -a  ! -L $2 ]
			then
 		              if [ ${i##*.} == cpt ]
          		 	  then
				       	echo "Already encrypted" 
                			echo "Usage: Try cryption -h for more help"
					break
                              
				 else 
					ccencrypt $2
					echo "File encrypted"
					break
				fi
			elif [ -L $2 ]
				then
					echo "link file found"
					echo "Usage: cryption -el [ link_filename ] to forcefully encrypt link_source_file "
					break
			elif [ -d $2 ]
				then
					echo "Directory Found file expected"
					echo "Usage: cryption -h for more help"
					break
		elif [ $2 == "-h" -o $2 == "--help" ]
			then 
			echo -e "cryption -e help page\nEncryption help: \nUsage: cryption -e [file_name]"
		break
			elif [ ! -f $2 ] 	
				then			
				        echo "No such File "	
                			echo "Usage: Try cryption -h for more help"
					break
                              
			fi
			elif [ $1 == -e ] &&  [ $# -ne 2 ]  
				then
					echo "Invalid usage"	
	                		echo "Try cryption -h for more help"	
					break
			fi


#FOR DECRYPTION

for i in $2
	      do
		 if [ $1 == -d ] && [ $# == 2 ] 
		       then
		       		if [ -L $2 ]
						then
									echo "link file found"
								echo "Usage: Try cryption -h for more help"
								break	
								
					elif [ -f $2  ]
						then				
							if [ ${i##*.} == cpt ] 
          						then
								ccdecrypt $2 
                        	     				echo "File Decrypted" 
							else

							 echo "Cannot be decrypted"
							echo "Usage: Try cryption -h for more help"
						fi
			elif [ -d $2 ]
				then
					echo "Directory Found file expected"
					echo "Usage: cryption -h for more help"
					break
		elif  [ $2 == "-h" -o $2 == "--help"  ] 
			then		
				echo -e "cryption -d help page\nDecryption help:\nUsage: cryption -d [file_name.cpt]"
			break	
		elif [ ! -f $2 ]
		 then 	
			echo "No such file"
			echo "Usage: Try cryption -h for more help"	
			fi

		fi

# SYMBOLIC LINK ENCRYPTION

for i in $2
	do
              if [ $1 == "-el"  -a  $# == 2 ]
		      then
		        if [ -L  $2  ]
		   	then 
 		              if [ ${i##*.} == cpt ]
          		 	  then
				       	echo "Already encrypted" 
                			echo "Usage: Try cryption -h for more help"
					break
                              
				 else 
					 var=$(readlink -f $2)
					 ccencrypt $var
					echo "Link source file encrypted"
					break
					
		          	fi 
		    elif [ -f $2 ]
			   then
				  echo "Not an link file"
				  echo "Usage: cryption -h for more help"
				 break 
			elif [ -d $2 ]
				then
					echo "Directory found link file expected"
					echo "Usage: cryption -h for more help"
					break
		elif [ $2 == "-h" -o $2 == "--help" ]
			then 
	echo -e "cryption -el help page\nEncryption help: \nUsage: cryption -el [link_file_name]"
		break
			elif [ ! -f $2 ] 	
				then			
				        echo "No such file"	
                			echo "Usage: Try cryption -h for more help"
					break
                              
			fi
		     
		      fi
done
done
done
done