add grep clone tutorial

Author: x4nth055

README.md

@@ -214,6 +214,7 @@ This is a repository of all the tutorials of [The Python Code](https://www.thepy
     - [How to Print Variable Name and Value in Python](https://www.thepythoncode.com/article/print-variable-name-and-value-in-python). ([code](python-standard-library/print-variable-name-and-value))
     - [How to Make a Hangman Game in Python](https://www.thepythoncode.com/article/make-a-hangman-game-in-python). ([code](python-standard-library/hangman-game))
     - [How to Use the Argparse Module in Python](https://www.thepythoncode.com/article/how-to-use-argparse-in-python). ([code](python-standard-library/argparse))
+    - [How to Make a Grep Clone in Python](https://thepythoncode.com/article/how-to-make-grep-clone-in-python). ([code](python-standard-library/grep-clone))
 
 - ### [Using APIs](https://www.thepythoncode.com/topic/using-apis-in-python)
     - [How to Automate your VPS or Dedicated Server Management in Python](https://www.thepythoncode.com/article/automate-veesp-server-management-in-python). ([code](general/automating-server-management))

python-standard-library/grep-clone/README.md

@@ -0,0 +1 @@
+# [How to Make a Grep Clone in Python](https://thepythoncode.com/article/how-to-make-grep-clone-in-python)

python-standard-library/grep-clone/grep_python.py

@@ -0,0 +1,33 @@
+# Import the necessary libraries.
+import re, sys
+from colorama import init, Fore
+
+# Initialize colorama.
+init()
+
+# Grep function.
+def grep(pattern, filename):
+    try:
+        found_match = False
+        with open(filename, 'r') as file:
+            for line in file:
+                if re.search(pattern, line):
+                    # Print matching lines in green.
+                    print(Fore.GREEN + line.strip() + "\n") # We are including new lines to enhance readability.
+                    found_match = True
+        if not found_match:
+            # Print message in red if no content is found.
+            print(Fore.RED + f"No content found matching the pattern '{pattern}'.")
+    except FileNotFoundError:
+        # Print error message in red if the file is not found.
+        print(Fore.RED + f"File '{filename}' not found.")
+
+
+if len(sys.argv) != 3:
+    # Print usage message in red if the number of arguments is incorrect.
+    print(Fore.RED + "Usage: python grep_python.py <pattern> <filename>")
+    sys.exit(1)
+
+pattern = sys.argv[1]
+filename = sys.argv[2]
+grep(pattern, filename)

python-standard-library/grep-clone/requirements.txt

@@ -0,0 +1 @@
+colorama