Python script for SSH login

python_script_for_ssh_login.py

#!/usr/bin/python

from pexpect import pxssh


s = pxssh.pxssh()
hostname = ''
username = ''
password = ''
if not s.login (hostname, username, password):
    print "SSH session failed on login."
    print str(s)
else:
    print "SSH session login successful"
    s.sendline ('uptime')
    s.prompt()         # match the prompt
    get_uptime = s.before.split("\r\n")     # print everything before the prompt.
    uptime = "there's some error in executing uptime"
    if len(get_uptime) > 1:
        uptime = get_uptime[1].split(",")
    print uptime


    # cpu execution
    s.sendline ("grep 'cpu ' /proc/stat | awk '{usage=($2+$4)*100/($2+$4+$5)} END {print usage}'")
    s.prompt()         # match the prompt
    cpu = s.before.split("\r\n")     # print everything before the prompt.
    try:
        cpu_usage = cpu[1]
        active_time = (cpu_usage[0] + cpu_usage[1]).strip()
        active_user = cpu_usage[2].strip()
        one_minute_report = cpu_usage[3][-4:]
        five_minute_report = cpu_usage[4].strip()
        fifteen_minute_report = cpu_usage[5].strip()
    except:
        print "there's some error in executing cpu usage"

    print active_time, active_user, one_minute_report, five_minute_report, fifteen_minute_report


    activity = "there's some error in executing sevice sshd staus"
    s.sendline ('service sshd status')
    s.prompt()         # match the prompt
    if s.before:
        activity = "running" if 'active (running)' in s.before else "not running"

    s.sendline ('q')

    print activity


    s.logout()