LiveReload for the terminal. Performs a shell command whenever a matching file changes. Just specify the command to run and the file extensions to monitor.

mon.py

#!/usr/bin/env python

"""  Example:
        Enter command to run when a matched file changes:
            g++ hashing.cpp - o main & & ./main
        Enter space seperated list of file extensions to monitor:
            .cpp .h
"""

import os
import time
from watchdog.observers import Observer
from watchdog.events import FileSystemEventHandler

cmd = ""
exts = ""


class ChangeHandler(FileSystemEventHandler):

    def on_modified(self, event):
        global cmd, exts
        for e in exts:
            if (event.src_path[-len(e):] == e):
                print "======================================"
                print event
                print "======================================"
                os.system(cmd)


def main():
    if __name__ == "__main__":
        global cmd, exts

        cmd = raw_input("Enter command to run when a matched file changes: ")
        exts = raw_input("Enter space seperated list of file extensions to monitor: ")
        exts = exts.split(' ')

        event_handler = ChangeHandler()
        path = "."
        observer = Observer()
        observer.schedule(event_handler, path, recursive=True)
        observer.start()
        try:
            while True:
                time.sleep(1)
        except KeyboardInterrupt:
            observer.stop()
        observer.join()


if __name__ == '__main__':
    main()