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Running a unix script from a java program

Posted on 2008-10-01
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Last Modified: 2013-12-26
I writing a program which has to execute a shell script but it cant. But I can  execute other commands like mv without a problem. here is my code snipet. "
try
            {
                String s = null;
                String [] cmd = new String [];
                cmd [0] = "sh";
                cmd [1] = "-c";
                cmd [2] = "mv eppix/calls/nml/unproctest/" + myFiles [i] + " u1/LOADED";
                cmd [3] = "./TT_TEST_load.sh eppixgui";
                             
                Process process = Runtime.getRuntime ().exec (cmd);
   
            }
            catch (Exception e)
            {
                e.printStackTrace ();
            }

the mv commnad excutes without a problem but ""./TT_TEST_load.sh eppixgui";: this script doest wnat to run. But when I run the script directly on the shell it runs without problems please help
try
            {
                String s = null;
                String [] cmd = new String [];
                cmd [0] = "sh";
                cmd [1] = "-c";
                cmd [2] = "mv eppix/calls/nml/unproctest/" + myFiles [i] + " u1/LOADED";
                cmd [3] = "./TT_TEST_load.sh eppixgui";
                              
                Process process = Runtime.getRuntime ().exec (cmd);
    
            }
            catch (Exception e)
            {
                e.printStackTrace ();
            }

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Question by:mafifi
5 Comments
 
LVL 61

Expert Comment

by:Kevin Cross
ID: 22616312
I may be mistaken but ./ signifies current folder, so ensure that you are executing this with the that .sh in the same folder as your java program.

If not, you will have to change directories OR use absolute path.
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Author Comment

by:mafifi
ID: 22616340
The Java program in in the same folder as the script.
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LVL 12

Expert Comment

by:basav_com
ID: 22619972
Similar type of question has been answered here.
http://www.experts-exchange.com/Programming/Languages/Java/New_to_Java/Q_23743912.html
Can you pls check the current directory by running 'pwd' command as said by Venabili / mwvisa1.
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LVL 23

Expert Comment

by:Ajay-Singh
ID: 22620821
May I ask,
why are you running the shell script to move files around? Java has method File.renameTo that moves files or folders.
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LVL 9

Accepted Solution

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mbodewes earned 2000 total points
ID: 22626723
So if you write this out you get:

"sh" "-c" "mv eppix/calls/nml/unproctest/" + myFiles [i] + " u1/LOADED" "./TT_TEST_load.sh eppixgui"

Which is a bit weird because it will see both "eppix/calls/nml/unproctest/" + myFiles [i] + " u1/LOADED" but also "./TT_TEST_load.sh" and "eppixgui" as arguments to the mv command. Isn't it possible to create a shell script that takes one argument (myFiles[i]) and executes everything you try to put in the cmd[] array?

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