Did you try the code in your post? What was the result?

The return value of the command run inside the backtics is the STDOUT of the command.

qx/java -jar xyz.jar/ is equivalent to backticks. You can find more documentation about it in perldoc perlop.From the docs:

qx/STRING/
`STRING`
A string which is (possibly) interpolated and then executed as a system command with "/bin/sh" or its equivalent. Shell wildcards, pipes, and redirections will be honored. The collected standard output of the command is returned; standard error is unaffected. In scalar context, it comes back as a single (potentially multi-line) string, or undef if the command failed. In list context, returns a list of lines (however you've defined lines with $/ or $INPUT_RECORD_SEPARATOR), or an empty list if the command failed.

CountZero

A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James

In reply to Re: get return value from jar file by CountZero
in thread get return value from jar file by Anonymous Monk

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