---
name: "tos-locate-jre"
section: "1"
platform: "linux"
package: "tinyos-tools"
version: "1.4.2-3+b1"
release: "Debian 10 (Buster)"
platforms: ["linux"]
url: "https://new.carta.tech/tos-locate-jre"
---

# tos-locate-jre(1)

Locate a Java installation

## NAME

tos-locate-jre - Locate a Java installation

## SYNOPSIS

**tos-locate-jre** **--jni** **tos-locate-jre** **--java** **tos-locate-jre** **--javac**

## DESCRIPTION

**tos-locate-jre** locates your Java installation. It is used by other tools to decide where to install files, and is useful for setting up your shell path.

Under cygwin, **tos-locate-jre** checks the registry for the installation point of Sun's JVM. It will not find any other versions of Java.

Under Linux, **tos-locate-jre** looks for an executable named javac or java in the path. If none is found, it looks for IBM's and Sun's Java RPMs (in that order).

Once **tos-locate-jre** has located your Java directory, it can return  the directory containing the **java** executable (**--java** option), the directory containing the **javac** executable (**--javac** option), or the directory where JNI libraries should be installed (**--jni** option).

**tos-locate-jre** has only been tested with recent IBM and Sun JVMs. If you use something else, it will likely fail.

## EXAMPLES

Add java and javac to your path:\
   PATH=\`/usr/local/bin/locate-jre --java\`:$PATH\
   PATH=\`/usr/local/bin/locate-jre --javac\`:$PATH

## SEE ALSO

[*tos-install-jni*(1)](/tos-install-jni/1.md)