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Pass parameters from shell to java stdin

Geraldine Premkumar

Joined: May 01, 2006
Posts: 5

I have a shell script that calls java program. I need to pass parameters not as command line arguments to the java program but to java's standard input. Is there a way to do this in the shell script. I do know that < redirects I/O but how do I apply it here since I want to send only specific parameters and not the entire contents of the file.
I am very new to shell scripts and really appreciate any pointers.

Tim Holloway
Saloon Keeper

Joined: Jun 25, 2001
Posts: 15952

I think a "here script" is what you'd like:

java myprogram <<END

Everything between the delimiters ("END") is piped into stdin, with shell subsistutions being done as required.

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It is sorta covered in the JavaRanch Style Guide.
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