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#!/usr/bin/env python3
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""A clone of 'who' command; print information about users who are
currently logged in.
$ python3 scripts/who.py
giampaolo console 2017-03-25 22:24 loginwindow
giampaolo ttys000 2017-03-25 23:28 (10.0.2.2) sshd
"""
from datetime import datetime
import psutil
def main():
users = psutil.users()
for user in users:
proc_name = psutil.Process(user.pid).name() if user.pid else ""
line = "{:<12} {:<10} {:<10} {:<14} {}".format(
user.name,
user.terminal or '-',
datetime.fromtimestamp(user.started).strftime("%Y-%m-%d %H:%M"),
f"({user.host or ''})",
proc_name,
)
print(line)
if __name__ == '__main__':
main()
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