Допустим, вы устанавливаете Python, и он оказывается в каталоге `/opt/custompython/bin`.

Если вы скажете «да», чтобы обновить переменную окружения `PATH`, то программа установки добавит `/opt/custompython/bin` в переменную окружения `PATH`.

Это может выглядеть следующим образом:

```plaintext
/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/custompython/bin
```

//// tab | Linux, macOS

Digamos que instalas Python y termina en un directorio `/opt/custompython/bin`.

Si dices que sí para actualizar la variable de entorno `PATH`, entonces el instalador añadirá `/opt/custompython/bin` a la variable de entorno `PATH`.

Podría verse así:

```plaintext
/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/custompython/bin
```

////

//// tab | Windows

Digamos que você instala o Python e ele acaba em um diretório `C:\opt\custompython\bin`.

Se você disser sim para atualizar a variável de ambiente `PATH`, o instalador adicionará `C:\opt\custompython\bin` à variável de ambiente `PATH`.

```plaintext

  execute_build_script_from_env "${MASTER_EC2_PRE_BUILD_SCRIPT:-}"
fi

# READ-ONLY DEPENDENCY CACHE
if [ -d "/opt/gradle-cache" ]; then
  echo "##teamcity[setParameter name='env.GRADLE_RO_DEP_CACHE' value='/opt/gradle-cache']"
  echo "Setting READ_ONLY Gradle cache via env.GRADLE_RO_DEP_CACHE to use /opt/gradle-cache"
fi

# Print details of volumes to help us understand https://github.com/gradle/gradle-private/issues/4642

                else -> {
                    profilerParam("async-profiler")
                    param("env.FG_HOME_DIR", "/opt/FlameGraph")
                    param("env.PATH", "%env.PATH%:/opt/swift/4.2.3/usr/bin:/opt/swift/4.2.4-RELEASE-ubuntu18.04/usr/bin")
                    param("env.HP_HOME_DIR", "/opt/honest-profiler")
                }
            }

    client ->> dep: Start request
    Note over dep: Run code up to yield
    opt raise Exception
        dep -->> handler: Raise Exception
        handler -->> client: HTTP error response
    end
    dep ->> operation: Run dependency, e.g. DB session
    opt raise
        operation -->> dep: Raise Exception (e.g. HTTPException)
        opt handle

                when (os) {
                    Os.WINDOWS -> param("env.PATH", "%env.PATH%;C:/Program Files/7-zip")
                    else -> param("env.PATH", "%env.PATH%:/opt/swift/4.2.3/usr/bin:/opt/swift/4.2.4-RELEASE-ubuntu18.04/usr/bin")
                }
            }
            failureConditions {
                // We have test-retry to handle the crash in tests
                javaCrash = false

    Note over dep: Führt den Code bis zum yield aus
    opt Löst Exception aus
        dep -->> handler: Löst Exception aus
        handler -->> client: HTTP-Error-Response
    end
    dep ->> operation: Führt Abhängigkeit aus, z. B. DB-Session
    opt Löst aus
        operation -->> dep: Löst Exception aus (z. B. HTTPException)
        opt Handhabt

	for _, opt := range opts {
		str := stmt.Quote(opt.DBName)
		if opt.Expression != "" {
			str = opt.Expression
		} else if opt.Length > 0 {
			str += fmt.Sprintf("(%d)", opt.Length)
		}

		if opt.Collate != "" {
			str += " COLLATE " + opt.Collate
		}

		if opt.Sort != "" {
			str += " " + opt.Sort
		}
		results = append(results, clause.Expr{SQL: str})

    Note over dep: Ejecutar código hasta yield
    opt raise Exception
        dep -->> handler: Lanzar Exception
        handler -->> client: Response HTTP de error
    end
    dep ->> operation: Ejecutar dependencia, por ejemplo, sesión de BD
    opt raise
        operation -->> dep: Lanzar Exception (por ejemplo, HTTPException)
        opt handle