How can I use UNIX "ls -lt" command in JAVA?

I have a piece of java code whose function is to search for all
the files in a directory and attach the time of the file creation.
How can I do it? Also, I know that in UNIX, "ls -lt" will give me
all the file names and the creation times. So how can I use "ls -lt"
in Java?

O,I see you have notice my friend tsith,its not really about what language is better its about what language is better to start off with,this is the twist and the diffrents to other postings and so far I have not seen a good argument saying y java is a better language to start off with.Anyways the ? still stands is java a better language to start off with then c/c++???.If you ask me c/c++ is better and I am just waiting for a good argument to give my reasons.Anysways good to see you are still around tsith ;-).

Similar Messages

How can i use Unix database in java?

How can i use Unix database in Java?
Message was edited by:
JPro

I have not a clue about FoxPro, but the db then is FoxPro and not Unix. The better question would be "How do I connect to FoxPro DB running on Unix with JDBC?".
My answer to that would be, search the Internet for a JDBC driver.

How can i use embbed version of mysql in java?

Hi all,
How can i create embedded version of mysql in my java application? is it possible to do it in java if yes then how please little hint required thanks in advance

this is technically possible but may be rather difficult.
why exactly do you want to embed the database in your application?
have you considered using a pure java embedded database?
i think there is probably a better and easier solution to this.
if you MUST do it this way then look at this http://dev.mysql.com/doc/mysql/en/libmysqld_overview.html
and then have fun with JNI http://java.sun.com/developer/onlineTraining/Programming/JDCBook/jni.html
essentially you will have to have the mysql embedded server which is in C++ and connect to them from Java with JNI.
this is why I strongly suggest you consider the first two questions i asked because this seems like a lot of work to probably solve a simple problem.

How can I use unix commands from oracle report

I have to use the following command from oracle reports.
In oracle forms we can use the HOST command but what about oracle reports2.5.
I have to email the attached file 100245.pdf from oracle reports to the given email id
uuencode 100245.pdf 100245.pdf | mailx -s "test" [email protected]

Hi,
It's because .bat (or .cmd) files are scripts and not executables and are interpreted using the command line executable - which is normally cmd.exe (although you can buy others).
So you need to call cmd.exe passing the bat file name as a parameter, something like
cmd.exe /c batchfilename
Without the /c you will never get a response.
However, this brings us to the bizarre conclusion that you are going to:
call cmd.exe (a shell interpreter)
to launch a batch file
that calls cygwin (another shell interpreter)
which then runs ls
When shouldn't that just be:
call cmd.exe to run the dir command
Or better yet, If you are just after a file name listing and you seem to understand Java stored procs, why not just write a JSP to list the contents of a directory? No problems with OS dependant commands, scripts and 3rd party interpreters. Plenty of examples of that out on the internet as well.
HTH
Chris

How can I use srvctl command line for change "Failover type" and "F method"

Hi all,
I am using Oracle One Node (11.2.0.3), and I have a service:
/u01/11.2.0/grid/bin/srvctl config service -d orcl
Service name: orcldb
Service is enabled
Server pool: orcl
Cardinality: 1
Disconnect: false
Service role: PRIMARY
Management policy: AUTOMATIC
DTP transaction: false
AQ HA notifications: false
Failover type: NONE
Failover method: NONE
TAF failover retries: 0
TAF failover delay: 0
Connection Load Balancing Goal: LONG
Runtime Load Balancing Goal: NONE
TAF policy specification: BASIC
Edition:
Preferred instances: orcl_1
Available instances:
I would like to change "Failover type" and "Failover method" to:
Failover type: SELECT
Failover method: BASIC
How can I do that? Is there any graphical tool for it? Or, How can I use srvctl command line for change it?
Thanks in advance.
Leonardo.

user10674190 wrote:
Hi all,
I am using Oracle One Node (11.2.0.3), and I have a service:
/u01/11.2.0/grid/bin/srvctl config service -d orcl
Service name: orcldb
Service is enabled
Server pool: orcl
Cardinality: 1
Disconnect: false
Service role: PRIMARY
Management policy: AUTOMATIC
DTP transaction: false
AQ HA notifications: false
Failover type: NONE
Failover method: NONE
TAF failover retries: 0
TAF failover delay: 0
Connection Load Balancing Goal: LONG
Runtime Load Balancing Goal: NONE
TAF policy specification: BASIC
Edition:
Preferred instances: orcl_1
Available instances:
I would like to change "Failover type" and "Failover method" to:
Failover type: SELECT
Failover method: BASIC
How can I do that? Is there any graphical tool for it? Or, How can I use srvctl command line for change it?
Thanks in advance.
Leonardo.srvctl modify service -d database_name -s orcldb -q TRUE -m BASIC -P BASIC -e SELECT -z 180 -w 5 -j LONG
Also see
11gR2(11.2) RAC TAF Configuration for Admin and Policy Managed Databases [ID 1312749.1]

How can i run unix script from my apex page

how can i run unix script from my apex page and take the output of unix script as a hidden variable and display it on the report region of that page

I had a requirement to run a Fortran program against some data that woudl be extracted from the database after the user set up their filtering criteria and made some additional input. SInce the program was to complex to conver to PL/SQL, we decided to try and invoke it from Apex. This is how I did it.
1. I followed the steps in Tim Archer's excellent article "Oracle External Procedure to Run Host Commands" (http://www.timarcher.com/?q=node/9). If the link does nto work, google the article's title.
Using this steps I created a function which accepts any OS command, including calling my own shell scripts, and runs them. I called my PL/SQL function "shell" instead of "USF_RUN_HOST_CMD " as Tim did in his example (step 9).
2. In Apex,
a. I created a button to run my shell command. (I named it P2_RUN_SHELL)
b. I created a PL/SQL process whose source looks as follows:
shell('/home/ackness/scripts/cr_xcf_file.sh > /tmp/cr_scfp_file.log');
and which was conditioned on the the button P2_RUN_SHELL.
It works like a charm.
Note: since you can run your own scripts using this method, you can encapsulate a series of commands in a UNIX shell script and invoke that script from Apex. This allows you to be able to test or run you commands from the command line as well as Apex and makes it easier to develop/debug/enhance the scripts in the future.
Ackness

How can I use a 3rd party XML parser such as xerces with OC4J ?

Hi all tech experts,
I am using Oracle Application Server 10g Release 2 (10.1.2) and i have
installed Portal and Wireless and OracleAS Infrastructure on the same
computer.
i tried all the solutions on this thread
Use of Xerces Parser in out application with Oracle App Server 9.0.4
but still fighting.
I have also posted this query on OTN on following thread
How can I use a 3rd party XML parser such as xerces with OC4J?
but no reply....
Please help me on this issue.
Since OC4J is preconfigured to use the Oracle XML parser which is xmlparserv2.jar.
i have read the following article which states that
OC4J is preconfigured to use the Oracle XML parser. The Oracle XML parser is fully JAXP 1.1 compatible and will serve the needs of applications which require JAXP functionality. This approach does not require the download, installation, and configuration of additional XML parsers.
The Oracle XML parser (xmlparserv2.jar) is configured to load as a system level library of OC4J through it's inclusion as an entry in the Class-Path entry of the oc4j.jar Manifest.mf file. This results in the Oracle XML parser being used for all common deployment and packaging situations. You are not permitted to modify the Manifest.mf file of oc4j.jar.
It must be noted that configuring OC4J to run with any additional XML parser or JDBC library is not a supported configuration. We do know customers who have managed to successfully replace the system level XML parser and the Oracle JDBC drivers that ship with the product, but we do not support this type of configuration due to the possibility of unexpected system behavior and system errors that might occur from replacing the tested and certified libraries.
If you absolutely must use an additional XML parser such as xerces, then you have to start OC4J such that the xerces.jar file is loaded at a level above the OC4J system classpath. This can be accomplished using the -Xbootclasspath flag of the JRE.
i have also run the following command
java -Xbootclasspath/a:d:\xerces\xerces.jar -jar oc4j.jar
but no success.
How could i utilize my jar's like xerces.jar and xalan.jar for parsing instead of OC4J in-built parser ?
All reply will be highly appreciated.
Thnx in advance to all.
Neeraj Sidhaye
try_catch_finally @ Y !

Hi Neeraj Sidhaye,
I am trying to deploy a sample xform application to the Oracle Application Server (10.1.3). However, I encountered the class loader issue that is similar to your stuation. I tried all the three solutions but the application is still use the Oracle xml paser class. I am wondering if you have any insight about this?
Thanks for your help.
Xingsheng Qian
iPass Inc.
Here is the error message I got.
Message:
java.lang.ClassCastException: oracle.xml.parser.v2.XMLElement
Stack Trace:
org.chiba.xml.xforms.exception.XFormsException: java.lang.ClassCastException: oracle.xml.parser.v2.XMLElement
     at org.chiba.xml.xforms.Container.dispatch(Unknown Source)
     at org.chiba.xml.xforms.Container.dispatch(Unknown Source)
     at org.chiba.xml.xforms.Container.initModels(Unknown Source)
     at org.chiba.xml.xforms.Container.init(Unknown Source)
     at org.chiba.xml.xforms.ChibaBean.init(Unknown Source)
     at org.chiba.adapter.servlet.ServletAdapter.init(ServletAdapter.java:153)
     at org.chiba.adapter.servlet.ChibaServlet.doGet(ChibaServlet.java:303)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
     at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:719)
     at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:376)
     at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:870)
     at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:451)
     at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:299)
     at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:187)
     at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
     at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
     at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.ClassCastException: oracle.xml.parser.v2.XMLElement
     at org.chiba.xml.xforms.Instance.iterateModelItems(Unknown Source)
     at org.chiba.xml.xforms.Bind.initializeModelItems(Unknown Source)
     at org.chiba.xml.xforms.Bind.init(Unknown Source)
     at org.chiba.xml.xforms.Initializer.initializeBindElements(Unknown Source)
     at org.chiba.xml.xforms.Model.modelConstruct(Unknown Source)
     at org.chiba.xml.xforms.Model.performDefault(Unknown Source)
     at org.chiba.xml.xforms.XFormsDocument.performDefault(Unknown Source)
     at org.chiba.xml.xforms.XFormsDocument.dispatchEvent(Unknown Source)
     at org.apache.xerces.dom.NodeImpl.dispatchEvent(Unknown Source)
     ... 18 more

How can i use Button in BEx 7.0

Dear Folks,
Could you help me please ..
In BI 7.0, for BEx analyzer i see we can use button, combo box, analysis grid.
If i have a requirement like this:
1. I have sales report, where it has information about sales person.
2. And i want to filter that report with the sales person that i choose from combo box.
For that requirement, i tried to :
1. I Create a query to Sales info-provider for displaying sales.
2. I Create a query to either to MD Sales person / Sales info-provider in order to get Sales persons data.
3. I assign point no 1 to Analysis Grid.
4. I assign point no 2 to Combo box.
My questions are:
a. Is my techniques correct ??
b. How can i use button to execute filter into the corresponding report ???
c. Is there any tutorial regarding this ?? Could you share it to me please ..
Really need your guidances..
regards,
Niel..

Hi Niel,
You can use the method you specified.
In Bex Analyzer you have design mode where you can have the following items Button, Analysis Grid and Combo box.
To work with the button you need to use the Command Wizard which consists of pre-defined functions, out of those select the one which suits your requirement and supply the parameters. As it is done thorugh a Wizard it would be easy to do.
Also,
The Button Name displays the name of the button, which is generated automatically and is unique. This name is used on the BEx Analyzer Design Toolbar menu to refer to a particular instance of the button.
· Range u2013 Manipulate coordinates for a cell or cells in this field to move or resize the button.
· Button Text - The text (caption) you want to display on the button. You can use this to describe the command the button executes.
· Command Range (optional) - Specify a three-column range of cells in the worksheet that contains command parameters. In these cells, you provide the same parameters (Name, Index, and Value) as in the Static Parameters, but in the worksheet these can be variable, changing during
navigation based on query results or on a value you manually specify.
Button in Bex analyzer
Regards,
Neelesh Jain.

How can I use the built-in Isight camera with an external camera (usb/firewire) at the same time?

How can I use the built-in Isight camera and an external video camera at the same time?
I'm wanting to stream over Oovoo/Skype/etc. using 2 cameras.
Thanks

Simple question with a not so simple answer.
(a) If you mean that you want to run multiple apps simultaneously using a different camera with each app, you may encounter computing power limitations. Digital video is processor intensive. The only way to know if your Mac can do this it to try it. If the video does not work together but each app works when it it the only app running, you are likely overloading your Mac's ability to process and/or move all the required data in your data bus. You can get a better indication of whether this is the case by watching your Activity Monitor utility while running the apps you want to use.
(b) If you mean that you want to have more than one compatible camera connected to your Mac simultaneously for ease of changing between video sources, some, but not necessarily all, apps you are using to operate your camera(s) allow you to select between your cameras.
How you select among connected cameras depends on which application you are using. Here is how camera selection works in a few examples:
(1) For iChat, you can choose which iSight you use in the "Camera:" choices bar in iChat > Preferences... > Audio/Video that appears when more than one compatible camera is connected. Although your camera choices will be different, the choices bar will look something similar to the Preferences settings shown here:
If you cannot see the "Camera" choices bar, your Mac is recognizing only one (or none) of your cameras. In that case, consider the suggestions fromhttp://support.apple.com/kb/HT2090 for iSight problems or refer to your other camera's documentation for help.
This particular choices bar solution applies ONLY to iChat. Most other applications also have settings that allow you to choose which camera to use. However, they do not all work the same way.
(2) For instance, iMovie HD's camera choice is NOT set via Preferences. When you have more than one compatible camera connected, iMovie6 HD uses a drop-down menu choice something like this (depending on which version of iMovie you use):
Note: Because I had no built-in iSight connected when I made this example, and because my external iSight was not connected, the drop-down menu showed only "Time Lapse." Because your Mac has a built-in iSight, your built-in iSight would show in the drop-down menu even when no other camera is connected. Connecting an additional Mac compatible webcam should allow you to choose either camera.
Other iMovie versions work slightly differently.
iMovie 9 (from iLife '11) uses a different camera choice button shown in this article:
http://docs.info.apple.com/article.html?path=iMovie/9.0/en/mov39f84285.html
iMovie 8 (from iLife '09) is slightly different as explained in this article:
http://docs.info.apple.com/article.html?path=iMovie/8.0/en/10172.html
In general, you can use your Mac's help for the application in use to find out how to select among more than one connected camera.
(3) Photo Booth in Snow Leopard 10.6.x and later uses the Photo Booth > Camera menu command to select which camera to use.
Note for readers with older Mac OS X: The previous version of Photo Booth that came with Tiger (10.4.x) is such a simple, basic app that it offers no menu selectable choice. Unless your built-in iSight is already occupied as the camera being used by some open application before you launch Photo Booth, Photo Booth will use ONLY your built-in iSight.
However, you can use the trick from ¶ 4 of http://docs.info.apple.com/article.html?artnum=302781 to let Photo Booth use an external camera.
(If you have an external Firewire camera connected, it may be used in preference to any USB webcam. If that is a problem for you, merely disconnect the problem Firewire device.)
(4) For FaceTime, launch the app and click the Video menu item.
If your Mac recognizes more than one connected compatible camera, a "Camera" section listing the cameras from which you can choose will appear there. Clicking on the desired camera name will let you select the one you want as shown in this image from my Mac Pro and LED Cinema Display:
If your Mac recognizes only one compatible camera, the "Camera" section will not appear in the Video menu, but FaceTime will automatically use the connected camera that is recognized by OS X.
(5) I do not use Skype oir Oovoo. For those or other apps, see Help for each app for info on how to select your desired camera.
Message was edited by: EZ Jim

How can I use two database in Dataset in SSRS?

Hi,
I am using one query to generate my SSRS report. In that query I am using subquery. Now I am pulling data from multiple tales.
DB used in sub query is different than the rest of the tables DB.(So total I am using 2 DB(Database))
So I see that in SSRS, I can connect query(In DataSet Properties) to one DATA_SOURCE only, how can I use other database which is I used in sub-query?
I have to move this SSRS into PROD and I can't hard code that sub-query's DB name in my query.
Please give me suggestion. Thanks!!
Vicky

In SSRS 2008 R2 you can use the Lookup function (http://technet.microsoft.com/en-us/library/ee210531.aspx ) and LookupSet function (http://technet.microsoft.com/en-us/library/ee240819.aspx
Depending on your security set up, you can reference a table in a second database on the same server using a three part name: database.schema.table. This is more likely to work for you if you wrap your SQL command in a stored procedure.
Russel Loski, MCT, MCSE Data Platform/Business Intelligence. Twitter: @sqlmovers; blog: www.sqlmovers.com

How can i use or embed the ' C' language in java

thanks a lot friends for your suggestion on using 'c' language to implement the control of the keyboard ie. to prevent a key stroke of : ctrl+alt+delete keys from closing a running java application. i was advised that it won't be possible to implement this with java language, the use of 'C' language was suggested. i then wish to ask the following:
1. how can i use 'C'language in a java program and be able to compile to program so that the resultant program can help me prevent the closing of my java-application when the user of the application presses the following keys : ctrl+alt+delete. i don't even know the c language at all. how can i start and how can i combine the resultant code with java.
2. i'm thinking of creating an application that retrieves information from a database, like microsoft sql or oracle, and displays the resultant data from a table, say STUDENT TABLE, in a java application using the JTable class. i don't even know how to use this JTable but i've seen it used and know it will suit what i have in mind.
3. how can i make the table dynamic, ie. how can i make the table to immediately register / show the result of an update to the 'STUDENT' table in the database.
4. THANKS FOR YOUR HELP IN ADVANCE. i will most appreciate it if you can give me a sample code or a site where i download one. once again thanks.

Good luck disabling Ctrl+Alt+Del! I've read quite a bit about it, and at least on Windows 2000 (not sure about NT) or higher, disabling it is next to impossible. Problem is CAD is a system command, and the OS doesn't even send the keys to the active program. Ctrl+Alt+Del is handled by the GINA (Graphical Identification and Authentication) DLL installed on the system. You'll have to write and export the functions you need and change the GINA DLL used by the system to your own. Bear in mind that any small mistake in the dll can cause you to lose access to your computer if you haven't taken precautions!
On Windows 95/98, disabling Ctrl+Alt+Del is fairly easy as you just have to write some simple native code to fool the system that a password protected screensaver is running.
I've provided a link regarding winlogon and GINA here, but you've been forewarned!
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/security/security/winlogon_and_gina.asp

How can I use TopLink for querys that have two and more tables?

I use TopLink today, and I can use one table to query, but how can I use TopLink for querys that have two and more tables?
Thank you for see and answer this question.

You can write a custom SQL query and map it to an object as needed. You can also use the Toplink query language "anyOf" or "get" commands to map two tables as long as you map them as one to one (get command) or one to many (anyOf command) in the toplink mapping workbench.
Zev.
check out oracle.toplink.expressions.Expression in the 10.1.3 API

How can I use some of the image i am working on to paint with? like if I wanted to give someone an extra eye in the forehead, ow could i then paint their own i in the forehead? I know there is a paint tool for that, i just can't find it ... :/

How can I use some of the image i am working on to paint with? like if I wanted to give someone an extra eye in the forehead, ow could i then paint their own i in the forehead? I know there is a paint tool for that, i just can't find it ... :/

It sounds like you are talking about the cloning tool?
Tool looks like this:
Then when selected you can change the size of the brush and using Alt (windows) and Command (Mac) to select your region you want to copy then start to create you cloned image.
Hope this helps?

How can I use "t3://becluster:6001" rather than "t3://dcsv02,dcsv01:6001"

          I have 2 machines in a cluster (dcsv01 and dcsv02) (HP UNIX with weblogic server
          5.1 sp8) and 1 Windows PC with weblogic 5.1 sp10.
          I try to make a t3 connection between the PC and the cluster of machines.
          On the Windows PC I have the following configuration for the
          "c:\windows\system32\drivers\etc\Hosts" :
          171.1.70.61     becluster
          171.1.70.62     becluster
          where
          "171.1.70.61 is dcsv01 and
          171.1.70.62 is dcsv02 "
          If I connect my PC to the cluster with :
          hp.put(Context.PROVIDER_URL, "t3://dcsv01, dcsv02:6001"); :
          I have a great failover mechanism : if any of the machine (dcsv01 or dcsv02) are
          down the requests are routed to the other one.
          BUT!! If I connect my PC to the cluster with :
          hp.put(Context.PROVIDER_URL, "t3://becluster:6001"); :
          I have a not great failover mechanism :
          say that my windows hosts file looks like :
          171.1.70.61(dcsv01)     becluster
          171.1.70.62(dcsv02)     becluster
          then if dcsv02 is down then all requests are routed to dcsv01 and that is fine.
          BUT!! if dcsv01 is down then I got on my PC the
          "Bootstrap unable to get a t3 connection to dcsv01" exception and failover does
          not work. (not the way that it does with t3://dcsv01, dcsv02:6001 )
          So how can I use
          "t3://beclsuter:6001" rather than
          "t3://dcsv01, dcsv02:6001" with the same failover service????
          Thanks


          Thanks mike,
          In a UNIX or windows environment how can I get a DNS server that round robin?
          "Michael Reiche" <[email protected]> wrote:
          >You need to have becluster defined in a DNS that round-robins.
          >
          >Mike
          >
          >"Martial" <[email protected]> wrote in message
          >news:[email protected]...
          >>
          >> I have 2 machines in a cluster (dcsv01 and dcsv02) (HP UNIX with weblogic
          >server
          >> 5.1 sp8) and 1 Windows PC with weblogic 5.1 sp10.
          >>
          >> I try to make a t3 connection between the PC and the cluster of machines.
          >>
          >> On the Windows PC I have the following configuration for the
          >> "c:\windows\system32\drivers\etc\Hosts" :
          >> 171.1.70.61 becluster
          >> 171.1.70.62 becluster
          >> where
          >> "171.1.70.61 is dcsv01 and
          >> 171.1.70.62 is dcsv02 "
          >>
          >> If I connect my PC to the cluster with :
          >> hp.put(Context.PROVIDER_URL, "t3://dcsv01, dcsv02:6001"); :
          >> I have a great failover mechanism : if any of the machine (dcsv01 or
          >dcsv02) are
          >> down the requests are routed to the other one.
          >>
          >> BUT!! If I connect my PC to the cluster with :
          >> hp.put(Context.PROVIDER_URL, "t3://becluster:6001"); :
          >> I have a not great failover mechanism :
          >> say that my windows hosts file looks like :
          >> ..
          >> 171.1.70.61(dcsv01) becluster
          >> 171.1.70.62(dcsv02) becluster
          >> ..
          >> then if dcsv02 is down then all requests are routed to dcsv01 and that
          >is
          >fine.
          >> BUT!! if dcsv01 is down then I got on my PC the
          >> "Bootstrap unable to get a t3 connection to dcsv01" exception and failover
          >does
          >> not work. (not the way that it does with t3://dcsv01, dcsv02:6001 )
          >> So how can I use
          >> "t3://beclsuter:6001" rather than
          >> "t3://dcsv01, dcsv02:6001" with the same failover service????
          >>
          >> Thanks
          >>
          >>
          >>
          >
          >

How can I use regular expression to open files of certain types in java?

Ok this is the problem I am facing:
I have a command line input of something like "/usr/foo/bar/*.html"
and there are multiple files in that folder that end with .html.
How can I use the input to go through/open all the .html files in Java?
Help would be greatly appreciated thanks!

Or if you have to do it in java, check out the interfaces java.io.FileFilter and java.io.FileNameFilter
http://home.tiscali.nl/~bmc88/java/sbook/0128.html
class HTMLFilter implements FilenameFilter {
public boolean accept(File dir, String name) {
return (name.endsWith(".html"));
}Cheers,
evnafets

How can I use UNIX "ls -lt" command in JAVA?

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