top_history

#!/usr/bin/env python
"""
top_history

Print the top 10 commands from your bash history

Usage:
    top_history <user_name>

Options:
    -h --help     Show this screen.

"""
from collections import defaultdict
import os
import sys

from docopt import docopt

TOP = 10


def main(user_name):
    command_counts = _get_command_counts(_get_history(user_name))
    for i, command in enumerate(command_counts):
        if i == TOP:
            break
        print command[0] + "\t" + str(command[1])


def _get_command_counts(commands):
    command_counts = defaultdict(int)
    for command in commands:
        base_command = command.strip().split(' ')[0]
        if not base_command:
            continue
        command_counts[base_command] += 1
    return sorted(command_counts.items(), key=lambda x: x[1], reverse=True)


def _get_history(user_name):
    path = '/home/' + user_name + '/.bash_history'
    if not os.path.exists(path):
        print "File not found: " + path
        sys.exit(1)
    with open(path) as fp:
        return fp.readlines()


if __name__ == '__main__':
    main(docopt(__doc__)['<user_name>'])