Save the above script as wiki
Examples

$chmod +x wiki
$wiki china
$wiki barack obama
$wiki austin tx
$wiki salem oregon

chmod +x g.sh
g.sh oracle

2. Change the default port number if you like
/etc/default/shellinabox so that the default port is 443.

Then restart the shellinabox daemon:
sudo invoke-rc.d shellinabox restart

Access shellinabox server from my phone: https://your_home_internet_ip

I simply added the __main__ section and used it to do my spell checking from shell.

Download big.txt from here.

#!/usr/bin/env python

import re, collections

def words(text): return re.findall('[a-z]+', text.lower()) 

def train(features):
    model = collections.defaultdict(lambda: 1)
    for f in features:
        model[f] += 1
    return model

NWORDS = train(words(file('big.txt').read()))

alphabet = 'abcdefghijklmnopqrstuvwxyz'

def edits1(word):
   splits     = [(word[:i], word[i:]) for i in range(len(word) + 1)]
   deletes    = [a + b[1:] for a, b in splits if b]
   transposes = [a + b[1] + b[0] + b[2:] for a, b in splits if len(b)>1]
   replaces   = [a + c + b[1:] for a, b in splits for c in alphabet if b]
   inserts    = [a + c + b     for a, b in splits for c in alphabet]
   return set(deletes + transposes + replaces + inserts)

def known_edits2(word):
    return set(e2 for e1 in edits1(word) for e2 in edits1(e1) if e2 in NWORDS)

def known(words): return set(w for w in words if w in NWORDS)

def correct(word):
    candidates = known([word]) or known(edits1(word)) or known_edits2(word) or [word]
    return max(candidates, key=NWORDS.get)

if __name__ == "__main__":
    import sys
    import  os
    os.system('clear')
    if len(sys.argv) == 1 :
        print "usage: spell word"
    else:
        s = sys.argv[1]
        print s
        print "Did you mean %s?" % correct(s)

import win32com.client
import time

pi_sdk = win32com.client.Dispatch('PISDK.PISDK')
conn   = win32com.client.Dispatch('PISDKDlg.Connections')

pi_server = pi_sdk.Servers('my_pi_server') # PI server or collective name
conn.Login(pi_server,'pidemo','',1,0)

# using point tag: SINUSOID (pre-configured by default in demo PI server)
pi_point = pi_server.PIPoints['SINUSOID']

# retriving recorded data for the last 6 hours:
recorded_values = pi_point.Data.RecordedValues('*-2h','*',3,"",0,None)
time.sleep(0.1) # allow time for the call to complete.

print (recorded_values.Count)
for sample in recorded_values:
    v = sample.Value
    t = sample.TimeStamp.LocalDate
    print ("Value =",v, " (timestamp =",t,")")

# Print Snapshot value
pv = pi_point.Data.Snapshot
print (pv.Value)

select to_number(to_char(sysdate,'SSSSS')) from dual;

OSISofit PI Performance Equation
DaySec(‘*’)

– shutdown at 10:00pm with 1 minute notice.
0 22 * * * root shutdown -h +1

.units
2411 units, 71 prefixes, 33 nonlinear units

You have: 16 meters
You want: feet
* 52.493438
/ 0.01905
You have:

Press Ctr + d to exit

Many more interesting examples

using System;
public class ParentClass
{
public ParentClass()
{
Console.WriteLine("Parent Constructor.");
}
public void print()
{
Console.WriteLine("I'm a Parent Class.");
}
}

public class ChildClass : ParentClass
{
public ChildClass()
{
Console.WriteLine("Child Constructor.");
}
public static void Main()
{
ChildClass child = new ChildClass();
child.print();
}
}

[sony]$gmcs hello.cs

[sony]$mono hello.exe
Hello C#

Notes:

1. interval ‘m’ stands for month, use ‘n’ for seconds

2. returns a negative nubmer if date1 < date2, otherwise, positve

Parameter Description
interval The interval you want to use to calculate the differences between date1 and date2
Can take the following values:

yyyy – Year
q – Quarter
m – Month
y – Day of year
d – Day
w – Weekday
ww – Week of year
h – Hour
n – Minute
s – Second

Mono provides a complete CLR (Common Language Runtime) including compiler and runtime, which can produce and execute CIL (Common Intermediate Language) bytecode (aka assemblies), and a class library. It contains the interactive C# shell named csharp. csharp permits dynamically evaluating C# statements, and can be used for writing scripts or testing code fragments.

You can install it if it’s not there.

 sudo apt-get install mono-csharp-shell 

csharp> using System;
csharp> using System.Diagnostics;
csharp> Process[] runningProcs = Process.GetProcesses(".");
csharp> foreach (Process p in runningProcs)
      > {
      > string info = string.Format("{0} {1}", p.Id, p.ProcessName);
      > Console.WriteLine(info);
      > }

1 /sbin/init
2 kthreadd
3 ksoftirqd/0
4 migration/0
5 watchdog/0
6 events/0
7 cpuset
8 khelper
9 netns
10 async/mgr
11 pm
12 sync_supers
13 bdi-default
14 kintegrityd/0
15 kblockd/0
16 kacpid

(314*3.14)-10
975.96

#or
pow(math.pi,2)*99
977.0908357078464

Int16
Points with integer values between 0 and 32767 (15-bit unsigned integers).
Int32
Points with integer values between -2147450880 and 2147483647 (32-bit signed integers).

Python code

int('111111111111111',2)
32767
int('1'*15, 2)
32767

int('1'*31,2)
2147483647

bin(2147483647)
'0b1111111111111111111111111111111'
bin(2147483647).count('1')
31

bin(-2147450880)
'-0b1111111111111111000000000000000'

bin(-2147450880).count('1')
16
bin(-2147450880).count('0')
16

Excel 2003 = 65,536 rows
Excel 2007 = 1,048,576 rows

-- list all tables
show table
-- or

-- describe a table
show table TABLE_NAME

select rdb$relation_name
from rdb$relations
where rdb$view_blr is null
and (rdb$system_flag is null or rdb$system_flag = 0);

To List all views

select rdb$relation_name
from rdb$relations
where rdb$view_blr is not null
and (rdb$system_flag is null or rdb$system_flag = 0);

To list all tables and columns

select f.rdb$relation_name, f.rdb$field_name
from rdb$relation_fields f
join rdb$relations r on f.rdb$relation_name = r.rdb$relation_name
and r.rdb$view_blr is null
and (r.rdb$system_flag is null or r.rdb$system_flag = 0)
order by 1, f.rdb$field_position;

1. Install ssh server on your home computer
2. Open the sshd port number in your router configuration
3. On your local machine, run
ssh -fnD localhost:$NONE_USED_PORT ip_address_of_your_home_computer
for example:
ssh -fnD localhost:9999 public_ip_address_of_your_home_network
4. Configure Firefox to use the tunnel
Edit->Preferences-> Advanced -> Network -> Settings
Select Manual proxy configuration, enter localhost in the SOCKS Host field and the port you used for your tunnel, in my example above: 9999
5. Configure Firefox to use the tunnel also for DNS
Enter about:config in the address field, and search for network.proxy.socks_remote_dns and set it to true
6. Stop the tunnelling
ps -ef | grep ssh
Kill the SSH process with localhost:9999