Shell Script

[Gagan Sabharwal]

Hi,

I am entering into the world of Unix OS. I intend to write a simple shell script which runs a java program. My java program takes three VM arguments and classpath of various directories.Let the root directory be ab_root.
Can some one please guide me to a sample script for such tasks ?

Also I am having a hard time mugging up basic unix commands. Not too sure if its the lack of interest or what.

[Peter Johnson]

First, figure out how to run what you want to run from the command line. For example:

java -cp some/class/path main.class.Name arg1 arg2

To turn that into a script, add a line identifying the script processor. For example:

#!/bin/sh
java -cp some/class/path main.class.Name arg1 arg2

If you would like to pass the arguments to the script, change it to:

#!/bin/sh
java -cp some/class/path main.class.Name $*

Now you can run it as (assume the script is named "runmyapp"):

./runmyapp arg1 arg2

For more help, type "man bash" on the command line. You will get a lot of output, but everything about shell script syntax is in there.

Another hint: most Java apps are run by scripts. Study their scripts - look in the bin directory.

[Gagan Sabharwal]

Thanks much Peter. I will try it out.