On a command line, navigate to the folder where you have stored your Python script. After the for-loop, print out a confirmation message: print( "All files renamed."). Increment the counter for the next file: counter += 1. NewFileName = os.path.join(dir_path, new_filename) Rename the file with the new filename: oldFileName = os.path.join(dir_path, filename). 
Add a count at the end of the filename, and re-add the file extension: new_filename = pattern.format(counter) + file_ext Create a new filename based on the given pattern.Inside the for-loop, when looping through each file, get its file extension: file_ext = os.path.splitext(filename).Print( 'Enter a pattern for the new filenames as a command line argument')
If the user does not enter one, print out an error message: commandLineArgs = sys.argv
After the import statements, get the command-line argument entered. python batch-rename.py "Financial_Planning" When running the script on the command line, you can enter the pattern that you want to use to rename your files. import sys This will allow you to accept command-line arguments. At the top of the file, import the sys module. To rename a folder in CMD, type the following, replacing y:ourpathtofile. The script will rename all the files to the provided pattern, and append a count at the end of the filename. echo off Setlocal enabledelayedexpansion Set 'Patternrename' Set 'Replacereuse' For a in (.jpg) Do ( Set 'Filea' Ren 'a' 'File. This will work on files in the current folder - except those with in the names will be a problem. The user will need to enter a pattern into the script, such as "Financial_Planning". The code above doesn't rename the files - The paths are an issue and the source filename is incorrect. You can remove spaces, replace spaces with underscore, uppercase/lowercase filename, add a prefix/suffix, remove/replace strings and also catalog files by adding an incremental number to the file name.How to Rename All Files Based on a Given Pattern Here BatchRenameFiles Tool is a powerful tool, that allows you to quickly rename all the files in a specified directory. Bulk rename multiple files Download Batch Rename Files Tool 3.7
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