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renamer.py
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renamer.py
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import os
import sys
def rename_files(root_dir, pattern, new_name):
count = 0
matched_files = [filename for filename in os.listdir(root_dir) if pattern in filename]
if len(matched_files) == 1:
for filename in matched_files:
old_path = os.path.join(root_dir, filename)
new_path = os.path.join(root_dir, f"{new_name}{os.path.splitext(filename)[1]}")
print(f'Renaming {old_path} to {new_path}')
os.rename(old_path, new_path)
else:
for filename in matched_files:
count += 1
base, ext = os.path.splitext(filename)
new_filename = f"{new_name}_{count:05d}{ext}"
old_path = os.path.join(root_dir, filename)
new_path = os.path.join(root_dir, new_filename)
print(f'Renaming {old_path} to {new_path}')
os.rename(old_path, new_path)
if __name__ == '__main__':
if len(sys.argv) != 4:
print(f'Usage: {sys.argv[0]} ROOT_DIR=the beginning folder, PATTERN=what to search for, NEW_NAME=new_name_with_extension indicates that the NEW_NAME argument should include the desired new filename with the extension if you want to change the file extension while renaming.')
sys.exit(1)
root_dir = sys.argv[1]
pattern = sys.argv[2]
new_name = sys.argv[3]
rename_files(root_dir, pattern, new_name)