（Mac）从另一个Shell脚本调用Shell脚本在运行Java时给出访问错误

Question

I am a front-end dev working on a project for a client. Our back-end team has provided me with several java scripts that must be run which provide data to the application. All of these scripts are run from the command line.

What we've been asked to do is to open several instances of Terminal (or several tabs is fine too) and run one script (which calls the java app) per terminal window.

Right now, doing that involves opening all the windows by hand, using "cd" commands to get to the correct folder(s), and then running the java command, all by hand. I'd like to automate this process.

First, I wrote a shell script (launch_language) to call the java file in the correct folder. Running this command by itself works just fine, and runs the program as expected :

#!/bin/bash
java -jar mercury/language-packs/language-connector/target/language-connector-1.12.7.jar

So far, so good.

Now, I want to write another script, which will open a new Terminal window, then load and run this working script. Okay, so:

#!/bin/bash
open -a Terminal.app launch_language

Running this script opens a new terminal window as expected, and launches the launch_language script. When that happens however, the Terminal gives me this error:

Error: Unable to access jarfile mercury/language-packs/language-connector/target/language-connector-1.12.7.jar

Any thoughts as to why calling the launch_language script this way is causing this error to occur?

Answer 1

You are using relative path in your script - so it works only if you run it from specific directory.

Possible solutions:

1. add cd /FULL_PATH_TO_DIR before java -jar command
2. provide full path to jar ( /FULL_PATH_TO_DIR/mercury/language-packs/language-connector/target/language-connector-1.12.7.jar )