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javajavacio-redirection

How can I capture Java compiler errors into a file?

I compiled a Java program as 

javac t1.java > a

in order to redirect the error messages to file a. But a doesn't have the error contents (they still appear in the terminal). The command is executed from Linux command prompt.

The contents of t1.java is as:

class t1 {
    public static void main(String[] args) {
       System.out.printn("Hello World!"); // Display the string.
    }
}

So now there is an error, i.e. println is written as printn.

How can I capture this error message in file a?

Solution

  • Try redirecting the stderr:

    javac t1.java 2> error_file