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Full Discussion: Scripting issue
Top Forums Shell Programming and Scripting Scripting issue Post 302972641 by Chandan_Bose on Monday 9th of May 2016 08:21:26 AM
Old 05-09-2016
Hi RavinderSingh,

Certainly your code served my purpose

---------- Post updated at 05:39 PM ---------- Previous update was at 03:33 PM ----------

Code:
#!/usr/bin/bash
clear
export NLS_LANG=AMERICAN_AMERICA.AL32UTF8



if [ $# -lt 2 ]  ; then
        echo " Incorrect Number of Arguments";
        echo " Usage : Main_Script <FROM_DATE> <TO_DATE>";
        echo " Example : Main_Script 21-JUL-2015 30-JUL-2015";
        exit;
		
fi;

if [ $# == 2 ]; then
      if [[ $1 == [0-3][0-9]-[A-Z][A-Z][A-Z]-[0-9][0-9][0-9][0-9] ]]; then
	      if  [[ $2 == [0-3][0-9]-[A-Z][A-Z][A-Z]-[0-9][0-9][0-9][0-9] ]]; then 
		  START_DATE=$1
          END_DATE=$2;
          if [[ -n $1 && -n $2 ]]
          then
                 awk -vstart_date="$START_DATE" -vend_date="$END_DATE" 'BEGIN{
                                                                        num=split("JAN FEB MAR APR MAY JUN JULY AUG SEPT OCT NOV DEC", array," ");
                                                                        for(i=1;i<=num;i++){
                                                                                                Q[array[i]]=i
                                                                                           };
                                                                        split(start_date, A,"-");
                                                                        split(end_date, B,"-");
        if(A[3] > B[3]){VAL_YEAR="START date year is greater than END date year."}
        if(Q[toupper(A[2])] > Q[toupper(B[2])]){VAL_MONTH="START date month is after than END date month."}
        if(A[1] > B[1]){VAL_DATE="START date is after than END date."}
        if(A[3] <= B[3] && Q[toupper(A[2])] <= Q[toupper(B[2])]){
        if((A[3] == B[3] && Q[toupper(A[2])] == Q[toupper(B[2])] && A[1] < B[1]) || (A[3] == B[3] && Q[toupper(A[2])] < Q[toupper(B[2])]) || (A[3] < B[3] && Q[toupper(A[2])] < Q[toupper(B[2])])){
                                echo "REPORT FROM " $1 "TO "$2;
                           }
        else               {
                                print "Date is NOT in proper format because of following values:"
                                print VAL_YEAR ORS VAL_MONTH ORS VAL_DATE
                           }
                           }
        else               {
                                print "Date is NOT in proper format because of following values:"
                                print VAL_YEAR ORS VAL_MONTH ORS VAL_DATE
                           }
                           }                                  '
else
        echo "One of the argument is seems to be missing while running the script."
                            fi;
						 echo "Incorrect date format";
		                 echo  $1;
                         echo "Usage : DD-MMM-YYYY";
		                 echo " Example :  Main_Script 21-JUL-2015 30-JUL-2015";
                        exit;
		              fi 
		   else
		   echo "Incorrect date format";
		   echo  $1;
          echo "Usage : DD-MMM-YYYY";
		  echo " Example :  Main_Script 21-JUL-2015 30-JUL-2015";
		  exit;
       fi; 
	   else
	    echo "Incorrect date format";
		echo  $2;
        echo "Usage : DD-MMM-YYYY";
		echo " Example :  Main_Script 21-JUL-2015 30-JUL-2015";
		exit;
	
		 
    fi;

Whenever I'm running the code , with the following inputs ./testingscript.sh 21-JUL-2015 21-JUN-2016

The message which it is throwing is >>
"Date is NOT in proper format because of following values:"

---------- Post updated at 05:51 PM ---------- Previous update was at 05:39 PM ----------

And then it is running into an infinite loop, instead of giving perfect input examples. Can I have a justification as to why is this happening
 

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