Try to understand "-" in script

hi,
does anyone kindly explain what "-" is and how to use "-" in shell script?
for example
trap "ls -a" 2
trap - 2
How to understand here "-"?

# cat junk
#!/bin/ksh
trap "echo 'I said do not interupt me, dummy!'" 2
echo 'Do not interupt me...'
I=0; while ((I<3)); do ((I+=1)); sleep 60; done
trap - 2
echo '\nOk, leave whenever you want!'
while (true); do echo "the current time is `date`"; sleep 60; done
# ./junk
Do not interupt me...
^CI said do not interupt me, dummy!
^CI said do not interupt me, dummy!
^CI said do not interupt me, dummy!
Ok, leave whenever you want!
the current time is Thu May 15 22:16:56 CDT 2008
^C#

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Hi there,
Can you please clear your browser’s cache and try again.
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ExtendScript try/catch difference when script ran from ESTK and Illustrator

Hello,
I've written an ExtendScript for Illustrator using the ExtendScript ToolKit (ESTK). This scripts works really well when running it in Illustrator from the ESTK (using the target application functionality).
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```
function itemUsable (arr, item) {
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Expecting a cartesian join but did not get 1 (try to understand what is hap

Hello Oracle XML DB gurus,
I have successfully registered my schemas and inserted about 10,000 XML documents into the repository. Now I need to start reporting on the data that is in the documents. Following is a simplified form of my set-up.
I have a table that contain a XML_TYPE column that is schema based.
I will call the table TEST_REF it has two columns: ID number (PK) and XML_DOC which is of the foo schema.
foo schema has the following structure (foo is unbounded).
<DataSet>
<fooList>
<foo>
<val1></val1>
<val2></val2>
</foo>
<foo>
<val1></val1>
<val2></val2>
</foo>
</fooList>
</DataSet>
What I would like to do is select the XML document that I want to extract data from using the ID column. After that I wanted to be able to select all of the data values in /DataSet/fooList/foo from that document (val1 & val2).
I was able to do just that using the following query. However, I do not understand why the following query does not give me a cartesian product when I try to operate on mulitple documents. I'm actually getting exactly what I want, which are the individual data values from each document. I just need to understand what is going on. Does the table() function when used in this fashion perform a inner join for you? I hope this make sense.
select doc.id, extractvalue(Column_value,'/foo/val1') as VALUE1,
extractvalue(Column_value,'/foo/val2') as VALUE2
from test_ref doc,
table(XMLSequence(extract(doc.XML_DOC,'/DataSet/fooList/foo'))) foobar
where doc.id ='1'
------------------------ second where causes the I thought would cause a cartesian join--------------------
where doc.id in (1,2)
Sample data and results when using second where clause:
ID=1
<DataSet>
<fooList>
<foo>
<val1>2</val1>
<val2>22</val2>
</foo>
<foo>
<val1>4</val1>
<val2>44</val2>
</foo>
</fooList>
</DataSet>
ID=2
<DataSet>
<fooList>
<foo>
<val1>1</val1>
<val2>11</val2>
</foo>
<foo>
<val1>3</val1>
<val2>33</val2>
</foo>
</fooList>
</DataSet>
Results:
ID Value1 Value2
1 2 22
1 4 44
2 1 11
2 3 33
If what I'm asking does not make sense please let me know. I'm a newbe with this Oracle XML DB stuff. However, I really like what I have seen so far!
Thanks in advance
Derrick

It's a correlated join...

Try to understand the bequeath process

Hi,
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GRIETH1
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SQL>
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Message was edited by:
user318649

The SID is case sensitive in Unix.
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Try to understand OWB

I want to load a data warehouse I have designed and modelled with Erwin with OWB.... and I really have lots of problems to understand how this product works. I have 2 years experience in ETL with data stage mainly (and SQL with oracle, informix and SQL server) but i did not follow any course about OWB and have to load the data within 2 weeks in a small dwh. I have followed this kind of tutorial : http://otn.oracle.com/products/oracle9i/htdocs/9iobe/OBE9i-Public/obe-dwh/html/owb/owb.htm but this is really not enough! I would like to insert text in some fields, dates, do some lookup to load fact tables, some transformation, some loads using if then else,... constraints and derivations (using datastage vocabulary) but I do not have information enough to go further and do not find my way in owb. I also tried using the user guide but this is really not the best reference to try a quick step by step self training with owb. Would you have some reference to do so? Is there not any tutorial,... PLEASE, need help urgently! Thank you in advance!
Samir Temara : [email protected]

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Shadows... try to understand them...

Ok I've posted a few questions over the past 12 hours, ugh up almost all night playing with iWeb.
I'm making a website for a friend's who owns not only a "biplane rides" business but is also the manager of a circa 1920's grass strip airport (all very cool) I really want it to be "nice"... I'm struggling with the shadow option, sometimes it works and sometimes it doesn't and I'm wondering if its me or the limits of the program.
I've used the shadow option on text and on pictures - with and without frames. However I have line that divides the FAA Nav information (elevation, open to public, FAA identifier, etc) from the body of the text on the page. It's just a single line. I'd like to add a slight shadow to that and the shadow option does not work. Am I doing something wrong or can you NOT put a shadow on shapes?
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I'm sorry I can't put the site up yet for you to look at, its going to be on Godaddy and its not set up to upload yet (they said 24-48 hours).
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Hello Susan,
susan-kelly wrote:
It's just a single line. I'd like to add a slight shadow to that and the shadow option does not work. Am I doing something wrong or can you NOT put a shadow on shapes?
Yes, you should be able to add shadow to shapes.
I want the dotted line around the text box shadowed.
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can I group the pix together so they are one and then put a shadow around that outer border.
Grouping : Not that I know in iWeb '08.
Instead of clicking on them individually to select them, drag your mouse over all of them so you select them all without risking to move them.
If 1 picture is overlapping an other (ex. behind the other), shadow will look messy.
A quick way to avoid this is by "masking" the picture that is overlapping.
Kind regards,
Leo
PS : you may want to publish your website to a folder on your computer just for testing with different browser as not all of them understand the command "shadow"

Try to understand Throwable

I saw some sample codes like:
[Base Exception Class]
public class BaseException extends Exception {
public BaseException() {super();}
public BaseException(Throwable exception) {
super();
this.nestedException = exception;
}//end constructor
[Sub Exception]
public class TestException extends BaseException {
public TestException(Throwable exception) {
super(exception);
public TestException() {
super();
[Calling Class]
public Result getData() throws TestException {
try {
connection = ConnectionHelper.getConnection(...);
} catch (SQLException e){
TestException te = new TestException(e);
te.setErrorCode("10000");
throw te;
--What is the purpose of passing the e as Throwable in
new TestException(e);
It seems to me that if use:
TestException te = new TestException();
will also create the object. And
te.setErrorCode("10000");
throw te;
will be just fine. Then why should use the Throwable e to initiate the Object
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The Department link. When viewing an employee's information in ED you can click the employee's department name and will be taken to a new panel that display all other employees in the same department. Wow, I like it....
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I created a new post as it is more clear and will be more usefull to more ppl if we find the solution.
Thank you, again!

Hey!
Here's an example of how to get data from a database using Adobe Flex 3, AIR and SQLite.

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Hello everybody,
I get the follow error back, if I try to execute the BI Java / Technical Configuration of BI - Java (repeatable, reproducible):
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We sure, that the Porperties are the current parameters correct.
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Kind regards
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Need to Understand 2 Scripting parameters

Hi,
Can someone tell me what this is doing in script of ActiveSync stats:
$EASDevices = “”
$AllEASDevices = @()
The complete script is:
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$EASDevices = “”
$AllEASDevices = @()
$EASDevices = “”| select ‘User’,'PrimarySMTPAddress’,'DeviceType’,'DeviceModel’,'DeviceOS’, ‘LastSyncAttemptTime’,'LastSuccessSync’
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$AllEASDevices
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Hasan

They are just creating empty varibles so that data can be added to them later in the script.
The first one
$EASDevices = “”
creates an empty string.
the second one
$AllEASDevices = @()
creates an empty array.
DJ Grijalva | MCITP: EMA 2007/2010 SPA 2010 | www.persistentcerebro.com
Hi DJ,
What is the purpose of empty string.
Hasan

Guys I need help please read this and try to understand it

I want to know that what does a new driver has to do with modem that it makes noises like "click click" during the gameplay...
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but for the old driver everything runs fine even if i am online and watching 3D presentations or playing games....
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'

Try to understand JS function doSubmit

Hello,
I'm trying to understand how the APEX built-in function doSubmit() works.
Function from htmldb_html_elements.js:
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OK !
sorry I am not a JS master
The code source of the HTML page contains:
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