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raresteak/grep.py

Created August 28, 2023 01:12
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Mimic nix grep with Python3
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grep.py
import re
import argparse
parser = argparse.ArgumentParser(description='Mimic Linux grep command for Python')
parser.add_argument('pattern', type=str, help='The pattern to search for')
parser.add_argument('file', type=str, help='The file to search in')
parser.add_argument('-i', '--ignore-case', action='store_true', help='Perform case-insensitive search')
args = parser.parse_args()
if args.ignore_case:
pattern = re.compile(args.pattern, re.IGNORECASE)
else:
pattern = re.compile(args.pattern)
with open(args.file) as f:
for line in f:
if pattern.search(line):
print(line.rstrip())
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