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import sys
def merge_txt_files(file_list: list[str], output_file: str) -> None:
if not file_list:
print("No input files provided.")
return
metadata: list[str] = []
content: list[str] = []
# Read metadata and content from all files
for file_path in file_list:
try:
with open(file_path) as file:
lines = file.readlines()
if len(lines) < 2:
print(
f"Error: {file_path} does not have enough lines for metadata."
)
return
file_metadata = lines[:2]
file_content = lines[2:]
if not metadata:
metadata = file_metadata
elif metadata != file_metadata:
print(f"Error: Metadata mismatch in {file_path}")
print("Expected metadata:")
print("".join(metadata))
print(f"Metadata in {file_path}:")
print("".join(file_metadata))
return
content.extend(file_content)
except OSError as e:
print(f"Error reading file {file_path}: {e}")
return
# Write merged content to output file
try:
with open(output_file, "w") as outfile:
outfile.writelines(metadata)
outfile.writelines(content)
print(f"Successfully merged files into {output_file}")
except OSError as e:
print(f"Error writing to output file {output_file}: {e}")
if __name__ == "__main__":
if len(sys.argv) < 3:
print(
"Usage: python script.py output_file.txt input_file1.txt input_file2.txt ..."
)
else:
output_file = sys.argv[1]
input_files = sys.argv[2:]
merge_txt_files(input_files, output_file)
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