tldr/pages/common/jbang.md

jbang

Easily create, edit and run self-contained source-only Java programs. See also: java. More information: https://www.jbang.dev/documentation/guide/latest/cli/jbang.html.

• Initialize a simple Java class:

jbang init {{path/to/file.java}}

• Initialize a Java class (useful for scripting):

jbang init --template={{cli}} {{path/to/file.java}}

• Use jshell to explore and use a script and any dependencies in a REPL editor:

jbang run --interactive

• Setup a temporary project to edit a script in an IDE:

jbang edit --open={{codium|code|eclipse|idea|netbeans|gitpod}} {{path/to/script.java}}

• Run a Java code snippet (Java 9 and later):

{{echo 'Files.list(Paths.get("/etc")).forEach(System.out::println);'}} | jbang -

• Run command-line application:

jbang {{path/to/file.java}} {{command}} {{arg1 arg2 ...}}

• Install a script on the user's $PATH:

jbang app install --name {{command_name}} {{path/to/script.java}}

• Install a specific version of JDK to be used with jbang:

jbang jdk install {{version}}