A simple python script to rename all files in the specified path.
The following arguments are used in order to run the script:

1. Required:
   1. path- Directory Path
2. Optional:
   1. prefix- If provided, then file would be renamed as prefix_n where n is number from 1 to number of files present in directory
   2. debug- Logs debug information

To run the script

python renamer.py --path <directory path> --prefix <prefix string> --debug

NOTE: If a directory is present in the path, then it is simply ignored and a warning is issued in the log file.