corvax19

#!/usr/bin/python

import subprocess
import sys
import time
from optparse import OptionParser

def getOptionParser():
    parser = OptionParser(version = '0.1_2012017',
                          description = '''Script measures IO activity of the processes for a specified amount of time

corvax19

from urllib import urlopen;
import json, sys;
url = "http://openweathermap.org/data/2.1/find/name?q=" + city;
t = json.load(urlopen(url))['list'][0]['main']['temp'] - 273.15;
print t;

corvax19

tmux -- terminal multiplexer

Managing tmux sessions:
$ tmux      # start tmux server
$ tmux at   # attach running sessions to a terminal
$ tmux ls   # list running tmux sessions
$ exit      # close tmux session

Sharing sessions between terminals:
$ tmux new -s session_name # make new named session

corvax19

echo -n "That's the text"|openssl enc -e -aes-256-cbc -a
  Encrypt with interactive password. Encrypted message is base64-encoded afterwards.

echo -n "That's the text"|openssl enc -e -aes-256-cbc -a -k "MySuperPassword"
  Encrypt with specified password. Encrypted message is base64-encoded afterwards.

echo "GVkYiq1b4M/8ZansBC3Jwx/UtGZzlxJPpygyC"|openssl base64 -d|openssl enc -d -aes-256-cbc
  Base-64 decode and decrypt message with interactive password.

echo "GVkYiq1b4M/8ZansBC3Jwx/UtGZzlxJPpygyC"|openssl base64 -d|openssl enc -d -aes-256-cbc -k "MySuperPassword"

corvax19

ping -q -i1 -c3 target 2>&1|awk '/unknown host/{system("mailx -s \""$4" DNS resolution failed on `uname -n` at `date`\" bill.gates@microsoft.com >/dev/null")} /[:alpha:]/{S=S" "$0} END {print S}'

corvax19

Configuration

Edit /etc/sysconfig/vnstat, enter:
# vi /etc/sysconfig/vnstat

Sample outputs:

VNSTAT_OPTIONS="-u -i eth0"
Edit /etc/vnstat.conf, enter:
# vi /etc/vnstat.conf