*   Container Runtime Interface API change. [[@yujuhong](https://github.com/yujuhong)]
    *   A new field is added to CRI container log format to support splitting a long log line into multiple lines. ([#55922](https://github.com/kubernetes/kubernetes/pull/55922), [@Random-Liu](https://github.com/Random-Liu))

 */
public abstract class StringUtil {

    /**
     * Do not instantiate.
     */
    protected StringUtil() {
    }

    /**
     * A system line separator.
     */
    public static final String RETURN_STRING = System.getProperty("line.separator");

    /**
     * An empty string <code>""</code>.
     */
    public static final String EMPTY = "";

    /**
     * An empty array of strings.

    /**
     * Returns all active profiles for the current project build.
     * <p>
     * Active profiles are those that have been explicitly activated through one of the following means:
     * <ul>
     *   <li>Command line activation using the -P flag</li>
     *   <li>Maven settings activation in settings.xml via &lt;activeProfiles&gt;</li>
     *   <li>Automatic activation via &lt;activation&gt; conditions</li>

// This file is currently unlocked (change this line if you lock the file)
//
// $Log: MD4.java,v $
// Revision 1.2  1998/01/05 03:41:19  iang
// Added references only.
//
// Revision 1.1.1.1  1997/11/03 22:36:56  hopwood
// + Imported to CVS (tagged as 'start').
//
// Revision 0.1.0.0  1997/07/14  R. Naffah
// + original version
//
// $Endlog$
/*
 * Copyright (c) 1997 Systemics Ltd

#!/usr/bin/env bash

echo "Running $0"

if [ -n "$TEST_DEBUG" ]; then
	set -x
fi

trap 'catch $LINENO' ERR

# shellcheck disable=SC2120
catch() {
	if [ $# -ne 0 ]; then
		echo "error on line $1"
		for site in sitea siteb sitec; do
			echo "$site server logs ========="
			cat "/tmp/${site}_1.log"
			echo "==========================="
			cat "/tmp/${site}_2.log"
		done
	fi

	echo "Cleaning up instances of MinIO"

## **Typer**, FastAPI의 CLI

<a href="https://typer.tiangolo.com" target="_blank"><img src="https://typer.tiangolo.com/img/logo-margin/logo-margin-vector.svg" style="width: 20%;"></a>

웹 API 대신 터미널에서 사용할 <abbr title="Command Line Interface">CLI</abbr> 앱을 만들고 있다면, <a href="https://typer.tiangolo.com/" class="external-link" target="_blank">**Typer**</a>를 확인해 보십시오.

**Typer**는 FastAPI의 동생입니다. 그리고 **FastAPI의 CLI**가 되기 위해 생겼습니다. ⌨️ 🚀

## 요구사항

<a href="https://typer.tiangolo.com" target="_blank"><img src="https://typer.tiangolo.com/img/logo-margin/logo-margin-vector.svg" style="width: 20%;"></a>

Si estás construyendo una aplicación de <abbr title="Interfaz de Línea de Comandos">CLI</abbr> para ser usada en el terminal en lugar de una API web, revisa <a href="https://typer.tiangolo.com/" class="external-link" target="_blank">**Typer**</a>.

Or in other way, no need for them, import and use the code you need.

Any integration is designed to be so simple to use (with dependencies) that you can create a "plug-in" for your application in 2 lines of code using the same structure and syntax used for your *path operations*.

### Tested { #tested }

* 100% <abbr title="The amount of code that is automatically tested">test coverage</abbr>.

**특정 프로그램 호출**에 대해서만 사용할 수 있는 환경 변수를 만들 수도 있습니다. 해당 프로그램에서만 사용할 수 있고, 해당 프로그램이 실행되는 동안만 사용할 수 있습니다.

그렇게 하려면 프로그램 바로 앞, 같은 줄에 환경 변수를 만들어야 합니다:

<div class="termy">

```console
// Create an env var MY_NAME in line for this program call
$ MY_NAME="Wade Wilson" python main.py

// Now it can read the environment variable

Hello Wade Wilson from Python

// The env var no longer exists afterwards
$ python main.py

```

</div>

////

/// tip

Every time you install a **new package** in that environment, **activate** the environment again.

This makes sure that if you use a **terminal (<abbr title="command line interface">CLI</abbr>) program** installed by that package, you use the one from your virtual environment and not any other that could be installed globally, probably with a different version than what you need.

///