Simple Python Grep command
A python module that implements the grep command, including the -v and -x flags.
How to run examples:
python grep.py hello *
This command would print the file name where the keyword "hello" is found" and the text on the line
python grep.py -x hello *
This command would only print lines with exactly match the keyword "hello"
python grep.py -v hello *
This command would only print lines with that do not contain the keyword "hello"