# twurlのインストール...に失敗
$ gem install twurl
Fetching: oauth-0.5.4.gem (100%)
ERROR:  While executing gem ... (Gem::FilePermissionError)
...

# twurlのインストール
$ gem install twurl
...
Done installing documentation for oauth, twurl after 1 seconds
2 gems installed

# 動作確認
$ twurl -v
0.9.5

# 認証画面を開く
$ key='keykeykeykeykeykeykeykey'    # consumer key
$ secret='secretsecretsecretsecret' # consumer secret
$ twurl authorize --consumer-key $key --consumer-secret $secret
Go to https://api.twitter.com/oauth/authorize?oauth_consumer_key=keykeykeykeykeykeykeykey...&oauth_version=1.0 and paste in the supplied PIN
# メッセージに従ってURLをブラウザで開く

# 先程のつづき
$ twurl authorize --consumer-key $key --consumer-secret $secret
Go to https://api.twitter.com/oauth/authorize?oauth_consumer_key=keykeykeykeykeykeykeykey...&oauth_version=1.0 and paste in the supplied PIN
1234567 # PINを入力
Authorization successful

# 認証に成功したアカウントの確認
$ twurl accounts
uzimihsr
  keykeykeykeykeykeykeykey (default)

# APIからツイートしてみる
# レスポンスがJSONで返ってくるのでjqでパースする
$ twurl -X POST -d 'status=そとちゃんかわいい' /1.1/statuses/update.json | jq
{
  "created_at": "Mon May 18 10:09:54 +0000 2020",
  "id": 1262324524051075000,
  "id_str": "1262324524051075074",
  "text": "そとちゃんかわいい",
  "truncated": false,
  "entities": {
    "hashtags": [],
    "symbols": [],
    "user_mentions": [],
    "urls": []
  },
  "source": "<a href=\"https://uzimihsr.github.io/\" rel=\"nofollow\">uzimihsr-twurl</a>",
  "in_reply_to_status_id": null,
  "in_reply_to_status_id_str": null,
  "in_reply_to_user_id": null,
  "in_reply_to_user_id_str": null,
  "in_reply_to_screen_name": null,
  "user": {
    "id": 1146420174272073700,
    "id_str": "1146420174272073733",
    "name": "ずみし",
    "screen_name": "uzimihsr",
    "location": "日本 東京",
    "description": "超絶かわいい元保護猫そとちゃんのしもべです",
    "url": "https://t.co/mM0q9F0x2t",
    "entities": {
      "url": {
        "urls": [
          {
            "url": "https://t.co/mM0q9F0x2t",
            "expanded_url": "https://instagram.com/uzimihsr",
            "display_url": "instagram.com/uzimihsr",
            "indices": [
              0,
              23
            ]
          }
        ]
      },
      "description": {
        "urls": []
      }
    },
    "protected": false,
    "followers_count": 35,
    "friends_count": 52,
    "listed_count": 0,
    "created_at": "Wed Jul 03 14:07:23 +0000 2019",
    "favourites_count": 32,
    "utc_offset": null,
    "time_zone": null,
    "geo_enabled": true,
    "verified": false,
    "statuses_count": 227,
    "lang": null,
    "contributors_enabled": false,
    "is_translator": false,
    "is_translation_enabled": false,
    "profile_background_color": "F5F8FA",
    "profile_background_image_url": null,
    "profile_background_image_url_https": null,
    "profile_background_tile": false,
    "profile_image_url": "http://pbs.twimg.com/profile_images/1220189466368692224/VkTo35n4_normal.jpg",
    "profile_image_url_https": "https://pbs.twimg.com/profile_images/1220189466368692224/VkTo35n4_normal.jpg",
    "profile_banner_url": "https://pbs.twimg.com/profile_banners/1146420174272073733/1584881012",
    "profile_link_color": "1DA1F2",
    "profile_sidebar_border_color": "C0DEED",
    "profile_sidebar_fill_color": "DDEEF6",
    "profile_text_color": "333333",
    "profile_use_background_image": true,
    "has_extended_profile": false,
    "default_profile": true,
    "default_profile_image": false,
    "following": false,
    "follow_request_sent": false,
    "notifications": false,
    "translator_type": "none"
  },
  "geo": null,
  "coordinates": null,
  "place": null,
  "contributors": null,
  "is_quote_status": false,
  "retweet_count": 0,
  "favorite_count": 0,
  "favorited": false,
  "retweeted": false,
  "lang": "ja"
}