Ubuntu – How to execute a .jar file from the terminal

command linejava

I know that to execute a file, I use the . command, then the file name with a space between them. But I'm trying to execute a .jar file using the . and it does not work. I went into the properties and marked it as executable and made it run with Java.

Is there a way to execute a file with Java in the Bash Terminal?
I am trying to execute a Minecraft.jar file

I am trying to execute the Minecraft.jar file.

Best Answer

The . syntax can only be used to run (by "sourcing") shell scripts.

You'll need to use the java command to run a .jar file:

java -jar Minecraft.jar

If you don't have java installed, you can fix that by installing the default-jre¹ package. You can see if you already have java installed by running in a terminal:

java -version

[1]: This will install the default openjdk Java runtime. You can use openjdk-8-jre, or openjdk-7-jre, or openjdk-6-jre instead, if you prefer - whichever is available on your version of Ubuntu.

Related Solutions

Ubuntu – How to run a .JAR file via the terminal

You can run java package using this command on your terminal:

java -jar MyFirstClass.jar

If you don't have Java Runtime Edition (JRE) you'll need to install default-jre package.

Ubuntu – How do i make the jar file execute like a regular application from Terminal

You might want to try to make a bash script that executes your command. In your case it would look like this :

#!/bin/sh 
java -jar path_to_jar/jarName.jar "$*"

The "$*" takes all arguments given to the bash script and send them directly to your java program. The last thing to do is to save your script in /usr/bin/myprogram.sh Then you will be able to execute it directly as a command in the terminal:

myprogram arg1 arg2 arg3 arg4

Best Answer

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Ubuntu – How to run a .JAR file via the terminal

Ubuntu – How do i make the jar file execute like a regular application from Terminal

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