Question

I need to run an .sh file and get its output. I need to see the setup of the file as well.

The .sh file simply runs a java app through terminal.

Any ideas? I’m truly stuck on this…..

Elijah

The server.sh file:

echo Starting Jarvis Program D.
ALICE_HOME=.
SERVLET_LIB=lib/servlet.jar
ALICE_LIB=lib/aliceserver.jar
JS_LIB=lib/js.jar

# Set SQL_LIB to the location of your database driver.
SQL_LIB=lib/mysql_comp.jar

# These are for Jetty; you will want to change these if you are using a different http server.
 HTTP_SERVER_LIBS=lib/org.mortbay.jetty.jar

 PROGRAMD_CLASSPATH=$SERVLET_LIB:$ALICE_LIB:$JS_LIB:$SQL_LIB:$HTTP_SERVER_LIBS
 java -classpath $PROGRAMD_CLASSPATH -Xms64m -Xmx128m org.alicebot.server.net.AliceServer $1

My current code:

NSTask *server = [NSTask new];
[server setLaunchPath:@"/bin/sh"];
[server setArguments:[NSArray arrayWithObject:@"/applications/jarvis/brain/server.sh"]];

NSPipe *outputPipe = [NSPipe pipe];
[server setStandardInput:[NSPipe pipe]];
[server setStandardOutput:outputPipe];
[server launch];


NSMutableString *outputString = [NSMutableString string];
while ([outputString rangeOfString:@"Jarvis>"].location == NSNotFound) {
    [outputString appendString:[[[NSString alloc] initWithData:[[outputPipe fileHandleForReading] readDataToEndOfFile] encoding:NSUTF8StringEncoding] autorelease]];
    NSRunAlertPanel(@"", outputString, @"", @"", @"");

}

The NSRunAlertPanel is just for checking the output. Now my code is freezing and not even getting to the alertpanel.

Answer 1

See answer to this question.

There are a couple of things that should be fixed in your script:

• The script should begin with a
  shebang. Also make sure that the
  script has its executable bit set.
• Because the environment variables are set up relative to the shell script directory, you need to make sure that the script directory is the current directory.
• You need to export the environment variables that should be visible to the Java process.
• In the last line you can use exec to replace the shell process with the Java executable that runs Jetty.

Here is a revised version of your script:

#!/bin/sh
echo Starting Jarvis Program D.
cd "`dirname \"$0\"`"
export ALICE_HOME=.
export SERVLET_LIB=lib/servlet.jar
export ALICE_LIB=lib/aliceserver.jar
export JS_LIB=lib/js.jar

# Set SQL_LIB to the location of your database driver.
export SQL_LIB=lib/mysql_comp.jar

# These are for Jetty; you will want to change these if you are using a different http server.
export HTTP_SERVER_LIBS=lib/org.mortbay.jetty.jar

export PROGRAMD_CLASSPATH=$SERVLET_LIB:$ALICE_LIB:$JS_LIB:$SQL_LIB:$HTTP_SERVER_LIBS
exec java -classpath $PROGRAMD_CLASSPATH -Xms64m -Xmx128m org.alicebot.server.net.AliceServer $1

Invoking the shell script in Objective-C with multiple arguments:

NSTask *server = [NSTask new];
[server setLaunchPath:@"/bin/sh"];
[server setArguments:[NSArray arrayWithObjects:@"/applications/jarvis/brain/server.sh", @"argument", nil]];
...