Execute Shell Script through Demantra Workflow

Hi All ,
Can we execute shell script from Demantra Workflow ?
If yes where should we place the shell script file and wat should be the commandline command in the step .
We have the Demantra installed on a windows server and the workflow manager is on a linux server .
the batch file on the windows server can be executed through the secure shell from the linux server .
I am trying to achieve the same through thr demantra workflow
Appreciate any input on the same .
Thanks and regards
Suzy

Hi,
Shell script is not supported till Demantra 7.2.0.2 WF.
I have checked with Oracle team also and reply I got below for your reference:
QUESTION
*=========*
As per your details, shall we conclude like this:
*"only *.bat and *.exe files can be used in workflow. Demantra standard functionality doe*
*s not support shell script in workflow"*
ANSWER
*=======*
Hi ,
The Demantra standard functionality 7.2.0.2 does support shell script in workflow.
Thanks,
Asya
Please review the note#468071.1-Unable to Run EBS Workflows that Call EngineManager.exe in
You will find this note is referring to the Enhancement Request Bug 6644455-- ANALYTICAL ENGINE
NOT AVAILABLE ON UNIX/LINUX
But the enhancement bug exist and I hope it is fixed in Demantra 7.3.
Tks
MJ

Similar Messages

Executing shell script through PL/SQL

Hi,
I need some help regarding execution of shell script through Oracle PL/SQL.
I have a shell script present in /abc/xyz folder with name search.sh , Through a PL/SQL procedure I am creating a file to store the report data.
I want to execute /abc/xyz/search.sh from the PL/SQL procedure to delete all files created before 3 mins .
1.     At first I took Java route and got following permissions granted for RECON user.
GRANT USER SYS java.io.FilePermission <<ALL FILES>> execute ENABLED 351
GRANT USER SYS java.lang.RuntimePermission readFileDescriptor * ENABLED 350
GRANT USER SYS java.lang.RuntimePermission writeFileDescriptor * ENABLED 349
2.     Then I created a simple java class for execution of OS command as below
CREATE OR REPLACE AND COMPILE JAVA SOURCE NAMED "OSCommand" AS
import java.io.*;
import java.util.*;
public class OSCommand{
public static String Run(String Command){
try{
Process proc = Runtime.getRuntime().exec(Command);
int ext=proc.waitFor();
return ("0");
catch (Exception e){
System.out.println("Error running command: " + Command +
"\n" + e.getMessage());
return(e.getMessage());
3.     And a wrapper function as below to use this class
create or replace
FUNCTION OSCommand_Run(Command IN STRING)
RETURN VARCHAR2 IS
LANGUAGE JAVA
NAME 'OSCommand.Run(java.lang.String) return int';
4.     In my PL/SQL proceedure I am using following code to execute the command
v_Return := OSCommand_Run('/abc/xyz/search.sh');
to execute the shell script.
Proceedure executes without any error and generates a new csv file with report data , however shell script does not get executed and hence all csv files created earlier remain as it is in the folder.
Please help.

Sven W. wrote:
What happens if you remove the catch exception block from your java command?
I asume you still might have a permission issue. But it could be hidden from you, because of the exception is catched and printed into nirvana.Executed the wrapper function OSCOMMAND_RUN as below
DECLARE
v_Return VARCHAR2(2000);
BEGIN
v_Return := OSCOMMAND_RUN('/recon/html/invoice/search.sh' );
DBMS_OUTPUT.PUT_LINE('v_Return = ' || v_Return);
END;
And following is the result
v_Return = 0
Process exited.
In case of exception it would had printed the exception.
One more thing I noticed, even though I have taken following permissions
GRANT     RECON     SYS     java.io.FilePermission     /abc/*     execute     ENABLED     347
GRANT     RECON     SYS     java.io.FilePermission     /abc/xyz/*     execute     ENABLED     351
GRANT     RECON     SYS     java.io.FilePermission     <<ALL FILES>>      execute     ENABLED     352
GRANT     RECON     SYS     java.lang.RuntimePermission     readFileDescriptor     *     ENABLED     350
GRANT     RECON     SYS     java.lang.RuntimePermission     writeFileDescriptor     *     ENABLED     349
When I create a new search.sh in /abc dir I get following error
v_Return = the Permission (java.io.FilePermission /abc/search.sh execute) has not been granted to RECON. The PL/SQL to grant this is dbms_java.grant_permission( 'RECON', 'SYS:java.io.FilePermission', '/abc/search.sh', 'execute' )
Edited by: 960702 on Sep 25, 2012 10:34 AM

Need Help on Executing Shell Scripts through PL-SLQ

Hi All,
I am trying to execute a shell script from PL-SQL but I am not getting it right .
the code i used is as follows
----JAVA CLASS ---
CREATE OR REPLACE AND COMPILE JAVA SOURCE NAMED "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("Process out :" + 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("Process err :" + 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;
---PROCEDURE TO BE EXECUTED WHICH USES THE ABOVE JAVA CLASS IS ----
CREATE OR REPLACE PROCEDURE Host_Command (p_command IN VARCHAR2)
AS LANGUAGE JAVA
NAME 'Host.executeCommand (java.lang.String)';
--- THE PERMISSIONS ---
call dbms_java.grant_permission('SYSTEM', 'SYS:java.io.FilePermission', '<<ALL FILES>>', 'read ,write, execute, delete');
call dbms_java.grant_permission('SYSTEM', 'SYS:java.lang.RuntimePermission', 'writeFileDescriptor', '');
call dbms_java.grant_permission('SYSTEM', 'SYS:java.lang.RuntimePermission', 'readFileDescriptor', '');
--- THE SHELL SCRIPT IS -----
#!/bin/sh
# This script removes the carriage returns from the Files having .DAT1 extensions in the /test/ Directory
# and the sends the single line stream to the new file with the use of 'gawk' command
# so finaly the files with same primary name but different secondary name are created
# e.g. file 'test.DAT1' is onverted to 'test.DAT'
# LOOP on /test/ DIRECTORY FOR SEARCHING FILES HAVING EXTENSION *.DAT1
for file_name in `ls /test/*.DAT1`
do
new_file_name=`echo $file_name | sed 's/DAT1/DAT/'`
# SEND THE CONTAINTS OF SELECTED FILE IN LOOP AS A CONTINUOUS STREAM TO NEW FILE NAME USING 'gawk' COMMAND
gawk 'BEGIN { ORS = "''" } { print $0 }' $file_name >> $new_file_name
# ABOVE LINE WILL CREATE A NEW FILE WITH SAME PRIMARY NAME BUT .DAT AS SECONDARY NAME(EXTENSION)
# REMOVE THE PRIOR FILE(s) AFTER SUCCESSFUL CALL TO 'gawk'
# $? returns 0 if the call to gawk command is succesfull
if test 0 = "$?"
then
rm -f $file_name
fi
done
# END LOOP ON /test/ DIRECTORY
---THE CALL TO THE PROCEDURE --
SQL>CALL DBMS_JAVA.SET_OUTPUT(1000000);
SQL>SET SERVEROUTPUT ON SIZE 1000000
SQL>exec host('/root/sh ecs_script.sh'); -----------------------------------------------1
now, the statement 1 is the path of the Shell Script ecs_script.sh
which uses gawk command and does some operations on some file..
but when i give the call in Statement 1 its giving error like
/bin/sh is not a directory
so i am not getting wHat should I do so that my script "ecs_script.sh" gets executed..
Please Help.

@ Bhagat & Michaels
Dear Friends,
I changed my shell name as per ur suggestions
and recompiled the Java class source with
finalCommand[0] = "/bin/bash"; instead of finalCommand[0] = "/bin/sh";
and then recompiled the host procedure
executed the host procedure as per ur suggestion as follows (with out put)
SQL> exec host('/bin/bash ecs_script.sh')
PL/SQL procedure successfully completed.
bt, bt, bt, it still did not do any operations defined in the "ecs_script.sh"
in fact the script did nt executed.......
pls help , I am loosing my time..
regards.

Executing Shell Scripts through PL-SQL

Hi All,
I am trying to execute a shell script from PL-SQL but I am not getting it right .
the code i used is as follows
----JAVA CLASS ---
CREATE OR REPLACE AND COMPILE JAVA SOURCE NAMED "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("Process out :" + 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("Process err :" + 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;
---PROCEDURE TO BE EXECUTED WHICH USES THE ABOVE JAVA CLASS IS ----
CREATE OR REPLACE PROCEDURE Host_Command (p_command IN VARCHAR2)
AS LANGUAGE JAVA
NAME 'Host.executeCommand (java.lang.String)';
--- THE PERMISSIONS ---
call dbms_java.grant_permission('SYSTEM', 'SYS:java.io.FilePermission', '<<ALL FILES>>', 'read ,write, execute, delete');
call dbms_java.grant_permission('SYSTEM', 'SYS:java.lang.RuntimePermission', 'writeFileDescriptor', '');
call dbms_java.grant_permission('SYSTEM', 'SYS:java.lang.RuntimePermission', 'readFileDescriptor', '');
--- THE SHELL SCRIPT IS -----
#!/bin/sh
# This script removes the carriage returns from the Files having .DAT1 extensions in the /test/ Directory
# and the sends the single line stream to the new file with the use of 'gawk' command
# so finaly the files with same primary name but different secondary name are created
# e.g. file 'test.DAT1' is onverted to 'test.DAT'
# LOOP on /test/ DIRECTORY FOR SEARCHING FILES HAVING EXTENSION *.DAT1
for file_name in `ls /test/*.DAT1`
do
new_file_name=`echo $file_name | sed 's/DAT1/DAT/'`
# SEND THE CONTAINTS OF SELECTED FILE IN LOOP AS A CONTINUOUS STREAM TO NEW FILE NAME USING 'gawk' COMMAND
gawk 'BEGIN { ORS = "''" } { print $0 }' $file_name >> $new_file_name
# ABOVE LINE WILL CREATE A NEW FILE WITH SAME PRIMARY NAME BUT .DAT AS SECONDARY NAME(EXTENSION)
# REMOVE THE PRIOR FILE(s) AFTER SUCCESSFUL CALL TO 'gawk'
# $? returns 0 if the call to gawk command is succesfull
if test 0 = "$?"
then
rm -f $file_name
fi
done
# END LOOP ON /test/ DIRECTORY
---THE CALL TO THE PROCEDURE --
SQL>CALL DBMS_JAVA.SET_OUTPUT(1000000);
SQL>SET SERVEROUTPUT ON SIZE 1000000
SQL>exec host('/root/sh ecs_script.sh'); -----------------------------------------------1
now, the statement 1 is the path of the Shell Script ecs_script.sh
which uses gawk command and does some operations on some file..
but when i give the call in Statement 1 its giving error like
/bin/sh is not a directory
so i am not getting wHat should I do so that my script "ecs_script.sh" gets executed..
Please Help.

The Java proc says:
> finalCommand[0] = "/bin/sh";
finalCommand[1] = "-c";
finalCommand[2] = command;
You call it as follows:
SQL>exec host('/root/sh ecs_script.sh');
The final command will be:
/bin/sh -c /root/sh ecs_script.sh
Is this what you intended?

Getting Error while executing shell through Demantra workflow

Hi All,
I created .sh file(shell script) for sftp(transfer file from one instance to another instance) and created new workflow with executable step.
In command line I have given file path and file name(Example: /folder/data/bin/abc.sh). When I try to run this workflow by clicking start button it is not running. That current step is marked with red color. and below error I am getting.could u please help me
Error description 'Process terminated with errors ,please check the process logs for more
information.'
2013-10-31 05:42:02,307 CET [WFProcess_39] ERROR dpweb.general: ######################################################################################
2013-10-31 05:42:02,308 CET [Mail_Thread] ERROR workflow.steps: MailThread:run()::No Sender or Reciever
2013-10-31 05:42:02,323 CET [Mail_Thread] ERROR workflow.steps: MailThread:run()::No Sender or Reciever
2013-10-31 05:44:00,391 CET [ExeStepExecutionThread] FATAL workflow.general: java.io.IOException: /data/nani/bin/sh: not found
java.io.IOException: java.io.IOException: /data/nani/bin/sh: not found
    at java.lang.UNIXProcess.<init>(UNIXProcess.java:148)
    at java.lang.ProcessImpl.start(ProcessImpl.java:65)
    at java.lang.ProcessBuilder.start(ProcessBuilder.java:451)
    at java.lang.Runtime.exec(Runtime.java:591)
    at java.lang.Runtime.exec(Runtime.java:429)
    at java.lang.Runtime.exec(Runtime.java:326)
    at com.demantra.workflow.step.ExeStep.run(ExeStep.java:336)
    at java.lang.Thread.run(Thread.java:595)
When I try to run the same script through putty its working fine but not through demantra workflow.

Dear DeetiNaresh,
Sorry I don't have a solution for this problem. But I am having this same issue. And this is only hit I have found for this issue in metalink or google. Incase your issue is resolved, it would be of great help to me, if you could post your resolution for this.
Thanks.

How we can call or execute a SHELL script through Oracle forms or Reports

How we can call or execute a SHELL script through Oracle forms or Reports.Its urgent.......

Use HOST command.

ABAP program to execute shell script !

Hi Friends,
I have created some shell scripts and need to be executed through ABAP prog in order to automate some process. can any one tell me how to execute these scripts through ABAP program? i know that we have to setup those scripts through SM69 but i dont have clear idea about this.can some one tell me step by step how to do this. ur help will be awarded in terms of points.
Thanks

Define the scripts as commands in SM69. Test them in SM69/SM49 to see if they work.
Next, go to SE37, run FM SXPG_COMMAND_EXECUTE, and specify your command there. Does it work?
If yes, you can just code a 'CALL FUNCTION' to this FM in your ABAP program, and you are ready to invoke your script from your ABAP.
For a list of functions that work with commands (defined in SM69), do a drop-down on SXPG_COMMAND* in SE37.
A sample code may look like this
concatenate zsys_id z_infile z_extfile into parm
    separated by space.
*C_FTP_COMMAND is a script defined in SM49
    CALL FUNCTION 'SXPG_COMMAND_EXECUTE'
      EXPORTING
        COMMANDNAME                   = C_FTP_COMMAND
        ADDITIONAL_PARAMETERS         = parm
        OPERATINGSYSTEM               = SY-OPSYS
      TABLES
        EXEC_PROTOCOL                 = PROT
      EXCEPTIONS
        NO_PERMISSION                 = 1
        COMMAND_NOT_FOUND             = 2
        PARAMETERS_TOO_LONG           = 3
        SECURITY_RISK                 = 4
        WRONG_CHECK_CALL_INTERFACE    = 5
        PROGRAM_START_ERROR           = 6
        PROGRAM_TERMINATION_ERROR     = 7
        X_ERROR                       = 8
        PARAMETER_EXPECTED            = 9
        TOO_MANY_PARAMETERS           = 10
        ILLEGAL_COMMAND               = 11
        WRONG_ASYNCHRONOUS_PARAMETERS = 12
        CANT_ENQ_TBTCO_ENTRY          = 13
        JOBCOUNT_GENERATION_ERROR     = 14
        OTHERS                        = 15.
    IF SY-SUBRC <> 0.
      MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
    else.
      write: /, 'FTP Function module executed with no errors.'.
    ENDIF.

Running Shell scripts through JAva

Hi,
I tried to execute a Shell script through a Java program.
The code I used is as below:
import java.lang.*;
import java.io.*;
public class sys {
public static void main(String[] args) {
Runtime rt = Runtime.getRuntime();
String[] callAndArgs = { "chgpasswd" };
try {
Process child = rt.exec(callAndArgs);
child.waitFor();
System.out.println("Process exit code is: " + child.exitValue());
catch(IOException e) {
System.err.println( "IOException starting process!");
catch(InterruptedException e) {
System.err.println( "Interrupted waiting for process!");
The "chgpasswd" shell script calls the "passwd" command of Unix.
It threw out an IO exception.
Then I gave the parameter as "./chgpasswd". It now gave an exit value of 255.
The "chgpasswd" script exists in the same directory as the .class file.
I checkd up the exit code reference...it says exit value of 255 could mean as exit code out of range........an exit code > 255....which unfortunately has no documentation, I guess.
Can you help ?

This is on a Unix platform, correct? Assuming so...
If I remember correctly, exit codes can be greater than 255. To get the real exit code equates to something like: exitcode & 512 to obtain the real exit code.
Make sure "chgpasswd" shell script has the execute permissions set. Additionally, make sure that the first line of the script (the magic line) has the appropriate shell/interpreter to execute specified. For example, if "chgpasswd" were a Bourne (sh) script, the first like would be:
#!/bin/shFor perl, it may be something like:
#!/usr/bin/perlIt needs to be the absolute path to the shell/interpreter is the point.

Calling Shell Scripts in Business Workflow and Guided Procedures

Hi *,
is it possible to call shell scripts in business workflow and guided procedures? would need further documentation (how to, blog,...) about this issue.
Thx in advance,
Rene.

Hello,
Workflows consist of tasks.
A task executed an object's method.
Methods are written in ABAP.
In the method you can code whatever you like, including code to execute shellscripts.
How to do this is not really a workflow question, I would suggest asking in an ABAP forum on how to write a function module to do this in a pure ABAP context. Then it's just a matter of inserting it into a method for use in your WF.
Cheers,
Mike

Call a Shell Script from a workflow

Hi,
I need to call a shell script from a workflow. How can I do this.
If the script takes any input, How can I pass that input to the script
and call the script in the workflow.
Suggestions are needed.
Thanks,
Pandu

Hi ,
I am executing the following java code :-
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
public class SetPermissions {
     * @param args
     public void runCmd()
          System.out.println("inside runCmd()");
     Runtime r = Runtime.getRuntime(); //get runtime information
     try
     Process Child = r.exec("/bin/sh") ; //execute command
     System.out.println("child process created..");
     BufferedWriter outCommand = new BufferedWriter(new OutputStreamWriter(Child.getOutputStream()));
     outCommand.write("test.sh");
     System.out.println("command executed..");
     outCommand.flush();
     Child.waitFor(); //wait for command to complete
     System.exit(Child.exitValue());
     catch(InterruptedException e)
     { //handle waitFor failure
     System.out.println("ERROR: waitFor failure");
     System.exit(10); //exit application with exit code 10
     catch(IOException e)
     { //handle exec failure
     System.out.println("ERROR: exec failure"+e);
     System.exit(11); //exit application with exit code 11
     public static void main(String[] args) {
          // TODO Auto-generated method stub
          SetPermissions setPer=new SetPermissions();
          setPer.runCmd();
The shell script test.sh is changing the access permissions for a particular folder on Unix server. The code is not exiting , and the acces permissions on the folder are also not changing.
If I execute the shell script directly , the access permissions gets changed on the folder. Please let me know the possible cause for this.

Error to execute the script through command prompt

I tried to execute the script through command prompt. I got some following error. Could you please advice me how to rectify this.
cscript D:\JS\Test.js
Microsoft (R) Windows Script Host Version 5.6
Copyright (C) Microsoft Corporation 1996-2001. All rights reserved.
D:\JS\Test.js(1, 1) Microsoft JScript runtime error: 'app' is undefined.
Thanks,
Prabudass

I haven't use CS for quite some time and file associations may not work with the command prompt.
You can try using Windows Explorer to browse to a .js file then right click on that file. From the popup menu choose Open With. Even if you see Photoshop in the file list choose Browse at the bottom. Browse to Photoshop and make sure to check 'Always use selected program...'
If that doesn't work you will need to create an action that runs your script and make a droplet from that action. You can then use the droplet in the command prompt. You may also need to create a 'dummy' image file to launch the droplet with if you script doesn't require an open document at startup. See http://www.ps-scripts.com/bb/viewtopic.php?t=967

Running Unix Shell scripts through Java

How to run Unix shell scripts through Java program ?

Use:
Process p = Runtime.getRuntime().exec("sh script.sh");Then you can use:
p.getOutputStream and read the output of your program.

Upgraded ROX filer not executing shell scripts

Hi all,
I run ICEWM+ROX filer as my lite desktop but after a recent upgrade, ROX does not execute shell scripts on mouse click. It appears that filetype detection has changed so that all scripts are shown with the shellscript icon, whereas before those without a .sh extension where shown with the kde type "cogwheel".
Any tips much appreciated.
My thanks in advance!

I've found a lot of things I don't like about the latest ROX upgrade... too much caching nowadays in my opinion.

Running a shell script through java

Hi all,
I have a simple question here.
How can I run a shell script through java and put the text output into a string.
I'd be very grateful if you could show me sample code...
Have a great day,
Pesho

Runtime.exec()
There are plenty of examples. Read the following before continuing, however, as it will save alot of headaches:
http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html

Finding path to source executed shell script

Hello,
I have shell script A which executes shell script B. The scripts A and B reside in the same directory.
Following requirements:
Scripts A and B need to be source executed.
The directory where A and B resides should be anywhere.
The present working directory from where A is executed should be anywhere.
The directory of scripts A and B may not be defined in $PATH.
The current shell could be any Bourne or Korn shell, Linux or Unix.
Problem:
Let's assume scripts A and B are installed in "/custom".
The users working directory is /home/oracle and he executes "source /custom/A".
If script A executes "source ./B", the result would be "source /home/oracle/B", which will fail.
Possible Solution:
Since script A is being sourced, $0 will always be the name of the current shell and not the name and path to script A.
I have not found a universal solution to locate the absolute path of a shell script that is being source executed.
So I was wondering about defining a variable in script A. e.g. SCRIPT_HOME=./custom. When script A executes "source $SCRIPT_HOME/B" it will work, but then script A needs to be customized by the user.
I could write a script C that edits script A to search and edit the SCRIPT_HOME variable. For this to work I will have to verify that script C is not source executed, and that script A is in the same directory as C based on $0. This is not a problem..
The question however is whether I need to create script C, or could simply execute script A with -config argument to edit itself and exit. I would prefer the later case and from what I understand, Unix and Linux do not lock files by default and this should be possible.
Any comments or suggestions please?
Thanks!
Edited by: Dude on Apr 5, 2011 3:59 AM

The $_ solution is actually very simple:
$ cat thatsme
mypath=$(dirname $_)
echo "$mypath/B"
$ source /home/oracle/thatsme
/home/oracle/BI do not need the absolute path of script A. The relative path from my current directory will do as well.
But, it does not work with an alias:
$ alias thatsme='source /home/oracle/thatsme'
$ thatsme
./B

Execute Shell Script through Demantra Workflow

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