How to shutdown jshell at the end of the script?

Question

How to instruct jshell to terminate at the end of the script similarly to interpreters of other languages like for example python3 or node?

Following command

./jshell -q /tmp/shell.java

with script /tmp/shell.java

System.out.println("Hello world");

prints

Hello world
jshell>

and waits for further commands. I'd like it to stop immediately at the end of the file.

I'm looking for something more elegant than System.exit(0); at the end of the script.

I've been using a .jsh file extension to indicate a file to be run with jshell, since .java implies it can be compiled by javac. — Jason, Apr 13 '17 at 10:43

score 73 · Accepted Answer · edited Jan 08 '19 at 07:44

73

Inside the script, use the jshell command /exit. This will exit jshell at the end of your script.

edited Jan 08 '19 at 07:44

Menuka Ishan

answered Apr 12 '17 at 22:31

Jason

score 8 · Answer 2 · answered Apr 17 '19 at 15:29

8

Another possibility is to have an exit file:

exit.jsh

/exit

And then run:

./jshell --startup myscript.jsh --startup exit.jsh

answered Apr 17 '19 at 15:29

Olivier Grégoire

score 0 · Answer 3 · answered Aug 11 '22 at 21:00

0

Another option:

cat /tmp/shell.java | jshell -

Should work the same in bash and windows powershell

answered Aug 11 '22 at 21:00

Mike Twc

3 Answers3