Lets see how to use the arguments in the korn shell script, beginning with unix shell annotation for arguments.

$1, $2, $3 … $n First, Second, Third… and nth Argument
$# (hash)    Count of Arguments
$* (Asterisk)    Arguments concatenated by space
$@ (at the rate)    Array of Arguments

Here is an sample shell script “accessArguments.ksh”.

$ cat accessArguments.ksh
# accessArguments.ksh
echo Zeroth Argument: $0
echo First Argument: $1
echo Second Argument: $2
echo Total No. Of Arguments: $#
echo Arguments: $*
for var in $@
do
echo Argument $var
done

Now lets see the output of the above script, with inputs as 10 and 15

$ accessArguments.ksh 10 15
Zeroth Argument : accessArguments.ksh
First Argument: 10
Second Argument: 15
Total No. Of Arguments: 2
Arguments: 10 15
Argument 10
Argument 15
$

Hope this example envisions you with the knowledge of using Arguments in Unix Shell.

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Consider the following SQL,

select * from dept where 1=1 and id = 5000;

This sql query is, of course same as

select * from dept where id = 5000;

Basically, this condition “1=1″ is used by lazy programmers, who wants to create an sql on the fly,i.e, dynamically through scripting, For example, Consider the below vb script.

strSqlStatement =  "Select * from Debt where 1=1"
For Each Obj in Conditions
strSqlStatement = strSqlStatement & " and " & Obj
Next

This is a lazy approach, as programmer could have identified the first condition and prefixed it with “where” , instead of adding “and” to every conditions, i.e. as following script.

strSqlStatement =  "Select * from Debt "
i = 0
For Each Obj in Conditions
If i  = 0  then
strSqlStatement = strSqlStatement & " where " & Obj
Else
strSqlStatement = strSqlStatement & " and " & Obj
End If
i = i + 1
Next

Similar to “where 1=1″, there is another lazy programmer approach, its “where 1=2″. The purpose of “where 1=2″ is to extract the list of column names in a table, and dynamically create “CREATE ” or “INSERT ” sql statements without fetching a record. Similar to the previous, There were better ways to do the same.

Ref:
* http://www.novicksoftware.com/TipsAndTricks/tip-sql-server-where-1-equals-2.htm
* http://stackoverflow.com/questions/242822/why-would-someone-use-where-11-and-conditions-in-a-sql-clause

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Few weeks back, one of my friend, known as “The Immortal” has requested all his friend to fill his Orkut scrap book to 10K. To say it from heart, it is illegal. But this keeps Orkut right.

Orkut has got lots of well defined process for preventing a user from automate scrapping in the scrap box.

For Example,
1, It prevents the advertising in the name of URL by checking the URL entered by user with the CAPTCHA..( I will write about it sometime future )
2. It prevents the user from scrapping the same text again and again.
3. Blank Scraps not possible.(may be)

These functionalities are important to note as they are the stepping stone above which we have to lay our feet to reach the goal. The Goal i reached is the 60 scrap in Three minutes..

To precisely summarize the requirement, a process is required to automate entering the text in the scrapbox and clicking the submit button.

Orkut uses Text area for Scrap Box and a table cell for submit button(?-*#_;)..

thankfully, both these elements have id as ‘scraptext’ and ‘b1′, else it would be some more complicated.

Automation Script that I have used is not a programmer’s favourite languages like perl, python ..(I do think that programmers will say “sea tastes like honey”).. I choose javascript and it would be running on Greasemonkey,an add on for Mozilla Firefox…

Why I have choosen this?
1. I have some idea on Grease monkey, Firefox and Javascript
2. I just know that it is going to be two lines of codes in this environment.

So what is the algorithm for these two lines of Code?
Algorithm is a best practise for writing a program. But it is needed for the place where it is needed. Algorithm is like dream and coding is like action. For some big achievements, there has a dream behind it. hey.. sorry.. i am cutting there.. its getting more philosophical..

Lets Come back to code…

 document.getElementByID().value = random text;
document.getElementByID().click();

that’s all the code… But the second line of code doesn’t work for me..

I suspect that it is because of table cell instead of button.(Orkuttan is bright)

There are hundreds of ways to create a random text. I have used a way, there by, three strings from two different arrays are joined in random fashion, it will yield the random string every time it is created.

for three minutes, i have clicked the submit button.. each time a random text filled up in the text area.. sixty scraps were made…

But the learning from this is not just clogging orkut, a new way of writing the scrap..
Now I have found a way of scrapping a message with randomly generated quote using this script as it was already populated..

so whats the future plan for this..
I would be writing a script for thunderbird so that a randomly generated quote can be added to all sent mails…

Deadline… Its always in future…

Reference:

http://diveintogreasemonkey.org/

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Having a year worked on JSP, I was still learning JAVA. Now, when time is ripe to put my knowledge in design,(building a personal website), I was surprised to see that there were very few Java web hosting companies in the Market, while others (almost all) would be supporting php.

To name the best few..
Eatj (Only web hosting where hosting by WAR)
My Java Server (almost all of the other uses ISAPI/Resins to connect to the webserver)

Another interesting and saddening for Java developer is

So this gives me a urge to learn PHP (Pre Hypertext Processor), The only scripting language that I have left it from learning. It would be very interesting to learn this Open Source scripting language, though It losts its favour from most of huge Corporate Intranet/Networks(Though there are some exception).

Don’t book mark this page. As I would be moving this blog to my website, once it is live…
for now.. http://www.comingsoon.com…

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