Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!rt.uk.eu.org!feed.xsnews.nl!border-2.ams.xsnews.nl!feeder.xennanews.com!nf40.xennanews.com!not-for-mail
From: Cecil Westerhof <Cecil@decebal.nl>
Newsgroups: comp.lang.java.programmer
Subject: Why does this only work when I am running a shellscript
Organization: Decebal Computing
X-Homepage: http://www.decebal.nl/
Date: Sat, 30 Mar 2013 09:46:38 +0100
Message-ID: <8738vdmg0h.fsf@Servus.decebal.nl>
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.3 (gnu/linux)
Cancel-Lock: sha1:qvRkwDwxuWZpA604th0FV2wGKkY=
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
X-Complaints-To: abuse@xennanews.com
Lines: 28
NNTP-Posting-Host: 84.53.123.169 (84.53.123.169)
NNTP-Posting-Date: Sat, 30 Mar 2013 09:58:51 +0100
Xref: csiph.com comp.lang.java.programmer:23155

I have the following code:
    private static void doCommand(final String cmd) throws IOException {
        Process p;
        Scanner sc;

        System.out.println("#" + cmd + "#");
        p  = Runtime.getRuntime().exec(cmd);
        sc = new Scanner(p.getInputStream());
        while (sc.hasNext()) {
            System.out.println(sc.nextLine());
        }
    }

When I call s shellscript like:
    doCommand("createQuote.sh citation");

It works as I would expect. When I use something like:
    /usr/bin/convert …

It hangs. It is not the command, because if I execute the command I
print in the shell directly, there is no problem.

So what is happening here?

-- 
Cecil Westerhof
Senior Software Engineer
LinkedIn: http://www.linkedin.com/in/cecilwesterhof