CODEWITHSUNDEEP
java
Lucky1234
Lucky1234

Reputation: 125

Why is "JAVA_HOME" path different from "which java" and "Whereis java"

In bash_profile the java_home is set as given below

export JAVA_HOME=$(/usr/libexec/java_home)

command "echo $JAVA_HOME" gives the below path

/Library/Java/JavaVirtualMachines/jdk1.8.0_241.jdk/Contents/Home

command "which java" gives the below path

/usr/bin/java

command Whereis java give the below path

/usr/bin/java

command "ls -la /usr/bin/java" gives the below link

lrwxr-xr-x 1 root wheel 74 Jan 15 2019 /usr/bin/java -> /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java

Why is that the java_home is different from the paths returned by "which java" and "Whereis java". Also why is /usr/bin/java linked to java in another location

Upvotes: 1

Views: 2716

Answers (1)

A G
A G

Reputation: 307

Why is that the java_home is different from the paths returned by "which java" and "Whereis java". Also why is /usr/bin/java linked to java in another location

JAVA_HOME is an environment variable

Any command run on shell / command prompt would be looked up in $PATH

by default "/usr/bin/*" is in PATH

To get your java and javac in PATH you will need to use following

export PATH=$JAVA_HOME/bin:$PATH

This when put in your bashrc or bash_profile will always use java and its related executable binaries from your JAVA_HOME. Remember to put this before the existing path as shown above.

Hope this helps

Upvotes: 3

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