Runtime exec method with arguments does not run bash script in Java

Question

I have 2 scenarios below. One where I use the Runtime.getRuntime().exec method with arguments this does not seems to work I get the error while running the bash script.

However if i use the exec method without passing any values to the exec parameters it works.

String cfenv_location="bash /root/.cfenv/environments/ussouth_ys1/bin/cf ";
Process p = Runtime.getRuntime().exec(new String[]{cfenv_location, "create-service", servicename, planname, appname.replaceAll(" ", "-")});

Error:

exception happened - here's what I know:
java.io.IOException: Cannot run program "bash /root/.cfenv/environments/ussouth_ys1/bin/cf": error=2, No such file or directory
        at java.lang.ProcessBuilder.start(ProcessBuilder.java:1041)
        at java.lang.Runtime.exec(Runtime.java:617)
        at java.lang.Runtime.exec(Runtime.java:485)
        at JavaRunCommand.cfCreateService(JavaRunCommand.java:111)
        at JavaRunCommand.main(JavaRunCommand.java:359)
Caused by: java.io.IOException: error=2, No such file or directory
        at java.lang.UNIXProcess.forkAndExec(Native Method)
        at java.lang.UNIXProcess.<init>(UNIXProcess.java:135)
        at java.lang.ProcessImpl.start(ProcessImpl.java:130)
        at java.lang.ProcessBuilder.start(ProcessBuilder.java:1022)
        ... 4 more

Works

String cfenv_location="bash /root/.cfenv/environments/ussouth_ys1/bin/cf ";
String command = cfenv_location+"login -a "+urllocation+ " -u "+username+ " -p "+password+ " -o "+org+" -s "+space;
Process p = Runtime.getRuntime().exec(command);

Can you try to remove the trailing space in first example ? Or even better I'd suggest to have bash as command and the rest as parameters... — Betlista
– Betlista, Commented Feb 13, 2015 at 20:37
I did try that but that does not seem to solve the problem. I get the same error — user3846091
– user3846091, Commented Feb 13, 2015 at 20:38
Yes, exactly that, and you removed starting "bash " from the cfenv_location variable, right? Please update the question with all you tried (and error messages), to prevent others to ask the same... — Betlista
– Betlista, Commented Feb 13, 2015 at 20:48

Betlista · Accepted Answer · 2015-02-13 21:05:26Z

1

Message:

Cannot run program "bash /root/.cfenv/environments/ussouth_ys1/bin/cf"

shows, that this String is interpreted as a command instead of command and argument (separated with space character).

The proper way is to split the string and call it as

Runtime.getRuntime().exec(new String[]{"bash", cfenv_location, ...

where cfenv_location is without starting "base " part...

answered Feb 13, 2015 at 21:05

Betlista

10.6k14 gold badges75 silver badges115 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Runtime exec method with arguments does not run bash script in Java

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related