called "MLCI" that makes testing more convenient: it can execute any full CI job
against a pending change. Search for "MLCI" internally to find it.

You may invoke a CI script of your choice by following these instructions:

```bash
cd tensorflow-git-dir

# Here is a single-line example of running a script on Linux to build the
# GPU version of TensorFlow for Python 3.12, using the public TF bazel cache and
# a local build cache:

ARG RELEASE

ENV GOPATH=/go
ENV CGO_ENABLED=0

WORKDIR /build

# Install curl and minisign
RUN apk add -U --no-cache ca-certificates && \
    apk add -U --no-cache curl && \
    apk add -U --no-cache bash && \
    go install aead.dev/minisign/cmd/minisign@v0.2.1

# Download minio binary and signature files
RUN curl -s -q https://dl.min.io/server/minio/release/linux-${TARGETARCH}/archive/minio.${RELEASE} -o /go/bin/minio && \

環境變數對於處理應用程式**設定**（作為 Python **安裝**的一部分等方面）非常有用。

## 建立和使用環境變數

你在 **shell（終端機）**中就可以**建立**和使用環境變數，並不需要用到 Python：

//// tab | Linux, macOS, Windows Bash

<div class="termy">

```console
// 你可以使用以下指令建立一個名為 MY_NAME 的環境變數
$ export MY_NAME="Wade Wilson"

// 然後，你可以在其他程式中使用它，例如
$ echo "Hello $MY_NAME"

Hello Wade Wilson
```

</div>

////

//// tab | Informações

... No entanto, as aspas dentro de trechos de código devem permanecer como estão.

////

## Blocos de código { #code-blocks }

//// tab | Teste

Um exemplo de código Bash...

```bash
# Imprimir uma saudação ao universo
echo "Hello universe"
```

...e um exemplo de código de console...

```console

#!/bin/bash
#
# Copyright 2022 The TensorFlow Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,

#!/bin/bash

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

pkill minio
rm -rf /tmp/xl

if [ ! -f ./mc ]; then
	wget --quiet -O mc https://dl.minio.io/client/mc/release/linux-amd64/mc &&
		chmod +x mc
fi

export CI=true
export MINIO_KMS_SECRET_KEY=my-minio-key:OSMM+vkKUTCvQs9YL/CVMIMt43HFhkUpqJxTmGl6rYw=
export MC_HOST_myminio="http://minioadmin:minioadmin@localhost:9000/"

//// tab | Windows PowerShell

<div class="termy">

```console
$ .venv\Scripts\Activate.ps1
```

</div>

////

//// tab | Windows Bash

もしWindowsでBashを使用している場合 (<a href="https://gitforwindows.org/" class="external-link" target="_blank">Git Bash</a>など):

<div class="termy">

```console
$ source .venv/Scripts/activate
```

</div>

////

/// tip | 豆知識

#!/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"
		echo "dc1 server logs ========="
		cat /tmp/dc1.log
		echo "dc2 server logs ========="
		cat /tmp/dc2.log
	fi

	echo "Cleaning up instances of MinIO"
	set +e
	pkill minio
	pkill mc
	rm -rf /tmp/xl/

	}

	// In case we're booting a device or emulator alongside all.bash, wait for
	// it to be ready. adb wait-for-device is not enough, we have to
	// wait for sys.boot_completed.
	if err := adb("wait-for-device", "exec-out", "while [[ -z $(getprop sys.boot_completed) ]]; do sleep 1; done;"); err != nil {
		return 0, err
	}

	// Done once per make.bash.
	if err := adbCopyGoroot(); err != nil {
		return 0, err
	}

환경 변수는 애플리케이션 **설정**을 처리하거나, 파이썬의 **설치** 과정의 일부로 유용합니다.

## 환경 변수를 만들고 사용하기

파이썬 없이도, **셸 (터미널)** 에서 환경 변수를 **생성** 하고 사용할 수 있습니다.

//// tab | Linux, macOS, Windows Bash

<div class="termy">

```console
// You could create an env var MY_NAME with
$ export MY_NAME="Wade Wilson"

// Then you could use it with other programs, like
$ echo "Hello $MY_NAME"

Hello Wade Wilson