Capturing the return code from java in a shell script

Question

I am invoking a java program from a shell script "TC Shell Script" and the java program returns status codes which represent certain conditions.

The return code of the java prgram is captured in the pre-defined status variable of the TC Shell.

The return codes are captured fine.

The problem I'm facing is when the java program returns or terminates with -1 with System.exit(-1) the shell script is getting 255 as the return code.

All positive numbers are captured fine in the shell script only -1 is being read as 255.

How can i solve this.

I guess you mean tcsh? This is commonly referred to as the Tenex C shell or simply as tcsh. There is a broad movement away from the C shell family; perhaps you should switch to Bash or Zsh (though for this question, it doesn't matter really). — tripleee
– tripleee, Commented Aug 20, 2015 at 7:29

tripleee · Accepted Answer · 2012-08-04 07:36:48Z

3

Return codes from executables are a small positive number. Negative numbers get converted to unsigned. There is no way to get a negative number into the exit code.

edited Aug 4, 2012 at 7:36

answered Aug 3, 2012 at 4:40

tripleee

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