Calling host commands

Hello All;
Is it possible to call the host command in Jdeveloper like it's called in Oracle Form such as host(command_1,NO_SCREEN)?
Thanks in advance for your reply.
TD

Try the Runtime.exec method
http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Runtime.html

Similar Messages

Call HOST command FROM FORMS 4.5 AND 6.0

I have a problem that I found out about yesterday, and have no idea how to fixe it.
I created a form to run on form 4.5.9.7 In this form i call up the host command, but it does not work properly, because by using the host oracle stops there until i close the application that i called with the host, it hangs there. But now it doesn't do it, once the host is executed, it continues the rest of the code that i have, which should not.
On the same computer i created another form on forms 6.0.5.2 and call the host command again, and finally it worked perfect! I mean until the program called by host command is running forms does not continue, it hangs there.
Could someone explains me that please, is there some patch I need on forms 4.5?
null

We converted forms from 4.5 to 6.0. Basically all you have to do is recompile the forms. but, the very first thing you have to do is recompile all the libraries. The forms will not work if you don't recompile the libraries first. So, open and compile the libraries in 6.0, then open and compile the forms in 6.0. They should then work fine. If they do not, try deleting and reattaching the libraries and compile again.
Good luck.

Calling Host Command Through Database Procedures or Triggers

We are intreseted to run the O/S command through Database stored procedures
or triggers.
Pl. help

You can even see the STDOUT and STDERR for your commands that you run from inside the database. An example can be found here
http://www.ckamco.com/Execute_Command.zip
Good Luck,
Eric Kamradt

Can't Call host command on Oracle Forms 10g on LINUX ap server

I have oracle developer suite 10g installed on Windows.I want to do some file operation in ap server(linux as 3)
I can use the script in the terminal on linux. but i can't use it on form . this is the button press trigger!
declare
     a varchar2(200);
begin
     a:='mkdir -p /data/apps/ygm';
--     message(a);
host(a);
end;
When the trigger execute, the linux hasn't do anything!
What should I do?

Check and make sure you've added the appropriate bin directories in the default.env file. I ran into the same problem with forms on OAS on HP-UX.
Steve.

Calling java host command in trigger/PLSQL

I created a java call to execute a linux host command that calls a shell script that will echo out a result. It is owned by SYS and has granted execute to SYSTEM. SYSTEM has a table that monitors accesses to the RDBMS. When a user logs on from a remote server vis sqlplus, this LOGON trigger write to the SYSTEM table (successfully). SYSTEM has a trigger that runs a linux command to execute a shell script that pulls the actual IP address from the remote system. I can run this call from a PLSQL block (outside the trigger) and get a response back like "user:101.101.101.111" but when I have the same user log on, the trigger fires - no errors or exceptions yet no rows are returned. Is there some restriction in a trigger versus just a plsql block call? The java code used is what I found on (http://www.oracle-base.com/articles/8i/ ... mPLSQL.php) and it works perfectly OUTSIDE the trigger but nothing is returned in the trigger firing steps. Any idea?
rdbms: 11.1.0.7, Redhat 4
I know the code works because I can write the host command output to a file. Later in the trigger I can open the file and can read the data that should have been returned in the java host call.

FYI - here is the code from your site that I used:
DROP JAVA SOURCE SYS."Host";
CREATE OR REPLACE AND RESOLVE JAVA SOURCE NAMED SYS."Host" as import java.io.*;
public class Host {
public static void executeCommand(String command) {
try {
String[] finalCommand;
if (isWindows()) {
finalCommand = new String[4];
// Use the appropriate path for your windows version.
finalCommand[0] = "C:\\windows\\system32\\cmd.exe"; // Windows XP/2003
//finalCommand[0] = "C:\\winnt\\system32\\cmd.exe"; // Windows NT/2000
finalCommand[1] = "/y";
finalCommand[2] = "/c";
finalCommand[3] = command;
else {
finalCommand = new String[3];
finalCommand[0] = "/bin/sh";
finalCommand[1] = "-c";
finalCommand[2] = command;
final Process pr = Runtime.getRuntime().exec(finalCommand);
pr.waitFor();
new Thread(new Runnable(){
public void run() {
BufferedReader br_in = null;
try {
br_in = new BufferedReader(new InputStreamReader(pr.getInputStream()));
String buff = null;
while ((buff = br_in.readLine()) != null) {
System.out.println("Cmd results: " + buff);
try {Thread.sleep(100); } catch(Exception e) {}
br_in.close();
catch (IOException ioe) {
System.out.println("Exception caught printing process output.");
ioe.printStackTrace();
finally {
try {
br_in.close();
} catch (Exception ex) {}
}).start();
new Thread(new Runnable(){
public void run() {
BufferedReader br_err = null;
try {
br_err = new BufferedReader(new InputStreamReader(pr.getErrorStream()));
String buff = null;
while ((buff = br_err.readLine()) != null) {
System.out.println("Cmd Error: " + buff);
try {Thread.sleep(100); } catch(Exception e) {}
br_err.close();
catch (IOException ioe) {
System.out.println("Exception caught printing process error.");
ioe.printStackTrace();
finally {
try {
br_err.close();
} catch (Exception ex) {}
}).start();
catch (Exception ex) {
System.out.println(ex.getLocalizedMessage());
public static boolean isWindows() {
if (System.getProperty("os.name").toLowerCase().indexOf("windows") != -1)
return true;
else
return false;
/

Calling SQL Loader from Forms 4.5 using HOST command in Win2000

One of my forms calls SQL Loader 7.3 using HOST command to load a csv file onto the database(Oracle 7.3) under Windows 2000 platform.
Only after sql loader finishes its operation the control should come to my form i.e. synchronous execution.
As of now its running asynchronously.
Is there any way to make it synchronous. If Not any other work arounds?
Environment Details
Forms [32 Bit] Version 4.5.10.6.0 (Production)
Windows 2000 Operating System
Oracle7 Release 7.3.2.3.2

Forms6i running on W2000, Rdbms 8.1.7
in Forms I added a button TEST,
Trigger when-button-pressed : host('test.bat') ;
in directory .......\frm I added file test.bat :
REM ===============
cd /d C:\........\ldr
pause
sqlldr parfile=test.par
pause
type test.log
pause
exit
REM ================
now, pressing TEST button opens DOS window, telling me what's going on, running sqlldr, finally going back to forms
Are you using NO_PROMPT or NO_SCREEN option of HOST command ?
Had a look at Forms 4.5 manuals, there is no mentioning of (a)synchronously operation in connection with HOST command.

Calling a Host Command

Dear Friends,
Is it posible to call a host command (windows) from PLSQL (Oracle 9i) ?
Thanks.
Jai

> [email protected]
[email protected]
[email protected]
So.. the one who dies with the most e-mail addresses wins?
Or what exactly is the purpose of posting all your e-mail addresses - besides as food for web bot e-mail harvesters used by spammers?

Problem using Host command to call a batch file

Hi all,
I am trying to call a batch file with the Host command:
host c:\test\u.bat
where u.bat calls unix2dos.exe with a parameter of d_unix.txt.
Bat file looks like this:
C:\test\unix2dos.exe d_unix.txt
PAUSE
The bat file gets called fine, but the following error occurs (in the cmd prompt):
T:\globals\ORACLE8\bin>C:\test\unix2dos.exe d_unix.txt
d_unix.txt:
Can't open file
T:\globals\ORACLE8\bin>PAUSE
Press any key to continue . . .
Running the batch file directly in windows works fine. The batch file also runs fine from the Host command if I remove the d_unix.txt parameter.
The file d_unix.txt file is in the same directory as the batch file and as unix2dos.exe.
Running from Sql Plus in a windows environment.
Any thoughts?
Edited by: dgouin on Aug 19, 2009 11:41 AM
Edited by: dgouin on Aug 19, 2009 11:42 AM
Edited by: dgouin on Aug 19, 2009 11:42 AM

I always understood that it worked with whatever directory you were in when you launched the SQL*Plus binary:
D:\>SQLPLUS dbuser@testdb
SQL*Plus: Release 10.2.0.4.0 - Production on Wed Aug 19 15:26:35 2009
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
Enter password:
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
dbuser@testdb > HOST ECHO %CD%
D:\
dbuser@testdb > exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
D:\>H:
H:\>SQLPLUS dbuser@testdb
SQL*Plus: Release 10.2.0.4.0 - Production on Wed Aug 19 15:27:03 2009
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
Enter password:
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
dbuser@testdb > HOST ECHO %CD%
H:\
dbuser@testdb > exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

When use host command to call discoverer

hi all
i am using the host command in forms 6i to call open
the discoverer by command line . its fine and works well
but the discoverer locks the screen and i cant work with both of them so i have to close the discoverer and i cant leave it open .
can solve this problem ?

Use API d2kwutil
PROCEDURE proc_call_disc IS
declare
nm_command varchar2(10000);
nm_user varchar2(20);
pw_user varchar2(20);
cn_user varchar2(20);
BEGIN
nm_user := get_application_property( username );
pw_user := get_application_property( password );
cn_user := get_application_property( connect_string );
nm_command := 'dis4usr /connect ' || nm_user || '/' || pw_user || '@' || cn_user||' /opendb "owner.'||v_nome_bis||'" /sheet '||v_sheet||' '||string_parametros;
win_api_shell.winexec(nm_command, WIN_API.SW_SHOWMAXIMIZED, false);
END;

Calling SQL Loader using HOST command from Developer Forms 4.5

I want to execute a set of code from D2K Forms 4.5 which has interfface with Client - OS ( In my case Windows NT/XP). I want to execute SQL Loader from Forms using Host Command and then after completion of that process, I want to do next transcations ( depending upond success of HOST/SQL Loader).
How to achive this?
I tried writing code like this ...
l_vc_command := 'sqlldr73'
                    ||' USERID='||l_vc_username||'/'||l_vc_password||'@'||l_vc_connect_string
                    ||' CONTROL='||l_vc_filepath||'Upload.ctl'
                    ||' DATA='||LTRIM(RTRIM(l_vc_fileloc))
                    ||' LOG='||l_vc_filepath|| l_vc_log_file || '_' || l_dt_sysdate_str ||'.log'
                    ||' BAD='||l_vc_filepath|| l_vc_bad_file || '_' || l_dt_sysdate_str ||'.bad'
                    ||' DISCARD='||l_vc_filepath|| l_vc_discard_file || '_' || l_dt_sysdate_str ||'.dsc';
HOST(l_vc_command,NO_PROMPT);
After this command i want to do some other code execution. so even if it fails or success, next code is executed. How to control this?
Please help..
Regards,
Milind

Forms6i running on W2000, Rdbms 8.1.7
in Forms I added a button TEST,
Trigger when-button-pressed : host('test.bat') ;
in directory .......\frm I added file test.bat :
REM ===============
cd /d C:\........\ldr
pause
sqlldr parfile=test.par
pause
type test.log
pause
exit
REM ================
now, pressing TEST button opens DOS window, telling me what's going on, running sqlldr, finally going back to forms
Are you using NO_PROMPT or NO_SCREEN option of HOST command ?
Had a look at Forms 4.5 manuals, there is no mentioning of (a)synchronously operation in connection with HOST command.

Forms HOST command no longer works after database upgrade from 10g to 11g

Hi,
After upgrading the database 10g to 11g the forms HOST command no longer works on Unix server. The form used to work fine prior the upgrade. I read all the threads I could find and did not see any solutions. Adding PATH and LD_LIBRARY_PATH does not work because it does not even run a basic shell script. (I saw this solution, adding PATH and LD_LIBRARY_PATH, in many questions / threads).
1. I wouldn't expect the database upgrade to be an issue, but it is the only change we had.
2. Note, 11g is Oracle Fusion Middleware which is quite a bit different than 10g.
I even tried the most basic commands like "echo" which is a build-in Unix command and there is no directory for it (ie. no /usr/bin - so variable PATH is irrelvent). i.e HOST('echo hi'); and HOST('echo "hi" '); and even HOST ('echo hi > /my_file.txt'); all returns FORMS_FAILURE (actually the if is IF FORM_SUCCESS THEN ... else ... and the else part always runs now - whereas it didn't before.).
Or basic commands like /usr/bin/ls as in HOST(/usr/bin/ls). At that point I was just testing the Unix command would return FORM_SUCCESS even though I could not see the results (because they weren't writing to a log file). Notice that I'm using the direct path /usr/bin so no Unix environment variables were needed.
The form does use webutil but that part works. For example, we have webutil_file_transfer( ....) The file shows up on the application server and in the expected directory.
Here's the main goal. Upload a file from clients local PC to the datebase server. The form uploads the file to the Application server, then we have a Unix script to scp (secure copy) the file from the application server to the database server. IF webutil, or any other Oracle functions could put the file on the database server that would be better. But, I don't know of any procedures that do that - or would have done it cleanly (i.e. storing to database and write back to server and then using a blob etc. )
Anyway, I was hoping someone would help with either of these.
1) Get the HOST command to work. - If we can get that to work then I wouldn't need any more help. We can just call the already existing Unix script to copy the file from the application server to the database.
2) OR be able to upload directly to the database server - wanted to do that originally
Any help would be appreciated

Solution for those interested and for anyone else searching this forum for a solution
I found this on My Oracle Support:
<h3>Host Command from Forms Not Working in 11g in Sun Solaris Sparc OS [ID 1157346.1]</h3>
Applies To: Oracle Forms - Version 11.1.1.1.0 and later
Sun SPARC Sun OS
Symptoms:
When trying to execute a Shell script or any OS command using the host() Built-in from Forms 11g, the host()command is not getting executed. The same functionality works on other operating systems and in previous versions like 10gR2.
Steps to be followed:
1) Take a backup and edit the $DOMAIN_HOME/config/fmwconfig/servers/WLS_FORMS/applications/formsapp_11.1.1/config/default.env or any custom environment file.
2) Locate the following environment variable:
LD_PRELOAD=/ora10gas/app/11.1.0/Middleware/as_1/jdk/jre/lib/sparcv9/libjsig.so
3) Comment out this variable. After the changes, it will look like the following:
#LD_PRELOAD=/ora10gas/app/11.1.0/Middleware/as_1/jdk/jre/lib/sparcv9/libjsig.so
3) a) Instead of LD_PRELOAD, kindly use LD_PRELOAD_64 as given below :
LD_PRELOAD_64=/ora10gas/app/11.1.0/Middleware/as_1/jdk/jre/lib/sparcv9/libjsig.so
(This makes HOST AND RUN_REPORT_OBJECT work fine).
4) Save the file and execute your forms. The Host() built-in will work as expected
The LD_PRELOAD setting in default.env is only required for the working of signal chaining facility in JVM version 1.5 and later. If you are not using theSignal chaining facility, this variable is not required. For more information, refer to the following documentation
http://download.oracle.com/docs/cd/E14571_01/doc.1111/e14772/forms.htm#CJAJGAFF

Call unix command in sqlplus script

Hello, I wanna to know how to call a unix command in the sqlplus script.
For exemple,
I've a sqlplus script to lauch a oracle report, after the report is generated, I wanne to replace the output file in an other directory.
So that, I have to call the unix command mv here in the sqlplus script
How can I do it?**
I completed my situation:
I don't have dbms_scheduler untility in my database.
Thanks a lot for your help
Edited by: user11930885 on 17 janv. 2010 14:53

Yes, at the begining, I'll tried the unix shell by calling SQL.
I've the problem of passing the parameters through.
It seems to me
we can use
Host in the SQLPLUS to run the unix command.
but I've written it in my sqlplus script, it doesn't work. so I wanna to find an exemple how to use HOST in sqlplus script?
I would have loved to give you an example..but its not unix on my laptop.
But what i can tell you is...u should be doing otherway round.
Not calling Unix commands from SQL but calling SQL's form unix.
You got shell scripts for that.
Write a shell script. Login to SQL execute your code.
exit from sql and then move your file with MV. That's it.
Do post how far you get after trying this.

How to run a script from Oracle Form (Beside using HOST command)

I would like to run a script from Forms 6.0. I know that we can actually issue this command :
host('plus80.exe' username/password@connect_string @c:\scriptname);
BUT, is there any other alternative ?

Sqlplus is a different program, so one way or the other you have to leave Forms to run sqlplus. What is you objection against HOST?
You can also run sqlplus from the database, but again you need a stored java procedure to call sqlplus (sort of HOST command that runs in the database).
Francois' solution works if your script just has a query to run, but if you have specific sqlplus commands (spool etc.) forms_ddl is probably not a solution.

Host Command does not come back

Hi,
I have treid to export schema by pressing a button, (form designed in Form10gR2 and excute via Application Server R2. )
For this I have applied one by one these syntaxes
1) host ( 'cmd /C start "" "'|| exp USERID=SYSTEM/MANAGER@ora11 OWNER=scott,hr FILE=E:\JAN10.DMP');
2) host ( 'cmd /C exp USERID=SYSTEM/MANAGER@ora11 OWNER=scott,hr FILE=E:\JAN10.DMP');
3) client_host('exp USERID=SYSTEM/MANAGER@ora11 OWNER=scott,hr FILE=E:\JAN10.DMP');
4) WEBUTIL_HOST.NONBLOCKING('exp USERID=SYSTEM/MANAGER@ora11 OWNER=scott,hr FILE=E:\JAN10.DMP');
When my client/ user executes the command, session goes hang and application screen does not come back. If I execute the exp command directly from the Application Server Command Prompt then exp works.
Please help me, what is the syntax to get the dump wihtout hanging the session.
Database 11g Linux
Application Server 10R2 Window2003.
Developer 10gR2.
Client Windows , Explorer, FireFox etc.
Regards.
Priya.

Hi Priya,
It is always a better practice to call a batch file using the host command instead of hardcoding the command inside form. Which would help you to modify the batch file for any changes, without re-compiling the forms.
In this case, create a batch script, which would set the ORACLE_HOME etc (to make sure the exp command is recognized, you need to add the DB ORACLE_HOME/bin to the PATH), and then call the command to export. You can also parameterize the batch script and pass the parameters from form, separated by space.
-Arun

Host command in forms/reports

Is there a host command in reports 6i? I used this in forms 6i. When I tried to use in Reports 6i, I received a compile error.
basically all I need to do is to get directory information. This can be easily done in forms using the host command. Is there any built in package or function to achieve this in reports?
thanks

there is no "host" command in reports 6i (or earlier versions). you might want to consider using forms+reports combination (calling the report from within a form, in which you can execute the host command and do whatever you want to do, then pass the related parameters to the report). I am using this approach to handle some complex end user reporting requirements.
hope this proves useful
regards

Calling host commands

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