RE: LeoThread 2024-11-23 15:13

[ahmadmanga]

Explanation:

1. Import Modules:

   • os is used to interact with the operating system, allowing us to traverse directories and files.
   • re is used for regular expression operations, which help in searching for patterns like numbers ending with "98".

2. Pattern Definition:

   • The pattern \b\d+98\b is defined using a regular expression.
     • \d+ matches one or more digits.
     • 98 matches the literal string "98".
     • The \b ensures that "98" is matched as a whole word, not part of another number.

3. Walking Through Directory:

   • os.walk(directory) is used to traverse the directory tree starting from directory.
   • For each file found in a directory or its subdirectories, it checks if the pattern matches any line in the file.