6. Running external programs

There are two ways to execute an external program in JISD.
One is to use Utility.exec(), which is a static method of JISD, and the other is to use %exec magic of IJava kernel.

Utility.exec()` returns an optional type of String[] containing stdout, stderr, and exit code, and the user can reuse the result.

• Using Utility.exec()

exec("pwd")

• Using %exec magic

%exec pwd