SMSRename.cpp

gistfile1.hpp

/* SMSRename.cpp

   Save the executable from this source code
   in a directory where you want to rename a
   set of files.

   Reads a file name from SMSoldnamesINPUT.txt and
   then reads a file name from SMSnewnamesINPUT.txt
   and then changes the name of the file in the
   directory from the oldname -> newname.
   Can spelunk through file directories fine.
   Iterates line-by-line through each file.
   Prints results to SMS_Log.txt.

********************************************/

#include<iostream>
#include<fstream>
#include<string.h>
using namespace std;

int main () {
  int result;
  string temp_old;//temporary string to hold old file name
  string temp_new;//temporary string to hold new file name
  ifstream oldNames ("SMSoldnamesINPUT.txt");
  ifstream newNames ("SMSnewnamesINPUT.txt");
  ofstream SMS_Log;
  SMS_Log.open("SMS_Log.txt");
  if (oldNames.is_open() && newNames.is_open() )
  {
    while (! oldNames.eof() && ! newNames.eof() )
    {
      // read line from SMSoldnamesINPUT.txt & copy to temp string
      getline (oldNames,temp_old);
      // dynamically alocate enough memory for char array
      char *a=new char[temp_old.size()+1];
      // assign the value of zero to the array
      a[temp_old.size()]=0;
      // copy data from temp string into char array
      memcpy(a,temp_old.c_str(),temp_old.size());

      /* repeat above process with SMSnewnamesINPUT.txt */
      getline (newNames,temp_new);
      char *b=new char[temp_new.size()+1];
      b[temp_new.size()]=0;
      memcpy(b,temp_new.c_str(),temp_new.size());

      result= rename( a , b ); //a = oldName, b = newName
      if ( result == 0 )
      {
         SMS_Log << "oldname: ";
         for (int i = 0; i < temp_old.size(); i++)
         {
           SMS_Log << a[i];
         }
         SMS_Log << '\t' << "newname: ";
         for (int i = 0; i < temp_new.size(); i++)
         {
           SMS_Log << b[i];
         }
         SMS_Log << endl;
      }
    }
    SMS_Log.close();
    oldNames.close();
    newNames.close();
  }
  else cout << "Unable to open file(s)";
  return 0;
}