How to switch multiple accounts for GCP gcloud command

If you have two accounts below:

• Sample account 1
  • config name: account1
  • project ID: hoge-fuga-123
  • account: [e-mail]
• Sample account 2
  • config name: account2
  • project ID: hoge-fuga-456
  • account: [e-mail]

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STEP 1. create configuration set for account1

% gcloud config configurations create account1
Created [account1].
Activated [account1].

% gcloud config set project hoge-fuga-123
Updated property [core/project].

% gcloud config set account [e-mail]
Updated property [core/account].

STEP 2. create configuration set for account2

% gcloud config configurations create account2
Created [account2].
Activated [account2].

% gcloud config set project hoge-fuga-456
Updated property [core/project].

% gcloud config set account [e-mail]
Updated property [core/account].

STEP 3. switch to account1 and check config

% gcloud config configurations activate account1
Activated [account1].

% gcloud config list
[core]
account = [e-mail]
disable_usage_reporting = False
project = hoge-fuga-123

Your active configuration is: [account1]

STEP 4. switch to account2 and check config

% gcloud config configurations activate account2
Activated [account2].

% gcloud config list
[core]
account = [e-mail]
disable_usage_reporting = False
project = hoge-fuga-456

Your active configuration is: [account2]

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GCP original reference page: https://cloud.google.com/sdk/gcloud/reference/config/configurations/