Android端末をshellで操作できるTermux:APIで遊んでみた

※この記事は「鹿児島Linux勉強会 2018.06」で発表したものに社会性フィルタをかけて加筆修正したものです.鹿児島らぐでは月一回位をペースにオフ会を行っています.

TermuxはAndroid上でLinux環境を構築するアプリケーションです.他に標準のLinuxディストリビューションがchroot環境で動作するソフトウェアが色々ある(Debian no root等)ので独自パッケージ管理なTermuxにはあまり惹かれていなかったのですが,API経由でAndroidデバイスの操作が出来るということを知り試してみました.

入手先

API利用時にはAPIアプリも導入が必要

※互換性の問題があるのでF-DroidとGoogle Playのアプリは混在させてはいけないらしいので注意.

要件

Android 5.0 or newer.

Permissions

Permissions
android.permission.INTERNET
android.permission.WRITE_EXTERNAL_STORAGE
android.permission.WAKE_LOCK
android.permission.VIBRATE
android.permission.READ_EXTERNAL_STORAGE

api pkg導入

Termux上で実行

$ pkg install termux-api

APIを試す

はじめTermux:APIで紹介されているものを確認しました.

パッケージを確認すると他にもコマンドがあったのでそちらも確認し直しました.

dpkg -L termux-api|grep /bin/|cut -d\/ -f8|sort
termux-audio-info
termux-battery-status
termux-brightness
termux-call-log
termux-camera-info
termux-camera-photo
termux-clipboard-get
termux-clipboard-set
termux-contact-list
termux-dialog
termux-download
termux-fingerprint
termux-infrared-frequencies
termux-infrared-transmit
termux-location
termux-media-player
termux-media-scan
termux-microphone-record
termux-notification
termux-notification-remove
termux-sensor
termux-share
termux-sms-inbox
termux-sms-send
termux-speech-to-text
termux-storage-get
termux-telephony-call
termux-telephony-cellinfo
termux-telephony-deviceinfo
termux-toast
termux-torch
termux-tts-engines
termux-tts-speak
termux-vibrate
termux-volume
termux-wallpaper
termux-wifi-connectioninfo
termux-wifi-enable
termux-wifi-scaninfo

基本的にjson形式で結果は帰って来ます.使い方がわからない場合は-hオプションで簡易helpが表示されます.パーミッションを求められる場合はダイアログが表示されるので許可してあげる必要があります.(その回は失敗する)

SIMや赤外線通信の使えるAndroid 5以上の端末が手元にないのでその辺りの物は試せてません.

  • termux-audio-info

    オーディオ情報の取得

      $ termux-audio-info -h
      Usage: termux-audio-info
      Get information about audio capabilities.
      $ termux-audio-info  
      {
        "PROPERTY_OUTPUT_SAMPLE_RATE": "48000",
        "PROPERTY_OUTPUT_FRAMES_PER_BUFFER": "960",
        "STREAM_MUSIC_VOLUME": 1,
        "STREAM_MUSIC_MAXVOLUME": 15,
        "BLUETOOTH_A2DP_IS_ON": false,
        "WIREDHEADSET_IS_CONNECTED": false,
        "AUDIOTRACK_NATIVE_OUTPUT_SAMPLE_RATE": 48000
      }
    
  • termux-battery-status

    バッテリー情報の取得

    $ termux-battery-status -h
    Usage: termux-battery-status
    Get the status of the device battery.
    $ termux-battery-status
    {
      "health": "GOOD",
      "percentage": 70,
      "plugged": "PLUGGED_USB",
      "status": "CHARGING",
      "temperature": 36.900001525878906
    }
    
  • termux-brightness

    輝度の調整?0や255を指定しても動作が解らなかった

    $ termux-brightness
    Usage: termux-brightness brightness
    Set the screen brightness between 0 and 255
    $ termux-brightness 0
    $ termux-brightness 255
    
  • termux-call-log

    通話履歴の取得

    $ termux-call-log -h
    Usage: termux-call-log [-d] [-l limit] [-o offset]
    List call log history
      -l limit   offset in call log list (default: 10)
      -o offset  offset in call log list (default: 0)
    $ termux-call-log
    
  • termux-camera-info

    カメラ情報が取得できる.カメラIDや解像度など.

    $ termux-camera-info -h
    Usage: termux-camera-info
    Get information about device camera(s).
    $ termux-camera-info
    [
      {
        "id": "0",
        "facing": "back",
        "jpeg_output_sizes": [
          {
            "width": 5248,
            "height": 3936
          },
          {
            "width": 5248,
            "height": 2952
          },
          {
            "width": 3840,
            "height": 2160
          },
          {
            "width": 3264,
            "height": 2448
          },
          {
            "width": 2048,
            "height": 1536
          },
          {
            "width": 1920,
            "height": 1080
          },
          {
            "width": 1280,
            "height": 720
          },
          {
            "width": 640,
            "height": 480
          },
          {
            "width": 480,
            "height": 320
          },
          {
            "width": 320,
            "height": 240
          }
        ],
        "focal_lengths": [
          4.900000095367432
        ],
        "auto_exposure_modes": [
          "CONTROL_AE_MODE_ON",
          "CONTROL_AE_MODE_ON_AUTO_FLASH",
          "CONTROL_AE_MODE_ON_ALWAYS_FLASH",
          "CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE"
        ],
        "physical_size": {
          "width": 6.219269752502441,
          "height": 4.663866996765137
        },
        "capabilities": [
          "backward_compatible"
        ]
      },
      {
        "id": "1",
        "facing": "front",
        "jpeg_output_sizes": [
          {
            "width": 1920,
            "height": 1080
          },
          {
            "width": 1600,
            "height": 1200
          },
          {
            "width": 1280,
            "height": 720
          },
          {
            "width": 640,
            "height": 480
          },
          {
            "width": 480,
            "height": 320
          },
          {
            "width": 320,
            "height": 240
          }
        ],
        "focal_lengths": [
          1.809999942779541
        ],
        "auto_exposure_modes": [
          "CONTROL_AE_MODE_ON"
        ],
        "physical_size": {
          "width": 2.1837236881256104,
          "height": 1.2063192129135132
        },
        "capabilities": [
          "backward_compatible"
        ]
      }
    ]
    
  • termux-camera-photo

    カメラを使って写真撮影が出来る.引数にカメラID(option)や写真ファイル名(必須)が指定できる.写真はJPEG形式

    $ termux-camera-photo -h
    
    Usage: termux-camera-photo [-c camera-id] output-file
    Take a photo and save it to a file in JPEG format.
      -c camera-id  ID of the camera to use (see termux-camera-info), default: 0
    $ termux-camera-photo termix_photo.jpg
    
  • termux-clipboard-get

    クリップボードの文字列を取得

    $ termux-clipboard-get -h
    Usage: termux-clipboard-get
    Get the system clipboard text.
    
  • termux-clipboard-set

    クリップボードに文字列を格納

    $ termux-clipboard-set -h
    Usage: termux-clipboard-set [text]
    Set the system clipboard text. The text to set is either supplied as arguments or read from stdin if no arguments are given.
    $ termux-clipboard-set hello
    $ termux-clipboard-get
    hello
    
  • termux-contact-list

    全てのコンタクトリストが表示される

    $ termux-contact-list -h
    Usage: termux-contact-list
    List all contacts.
    $ termux-contact-list
    [
      {
        "name": "MATOHARA Kenichiro",
        "number": "0X0-XXXX-XXXX"
      },
         :
    
  • termux-dialog

    ダイヤログを表示してその結果を取得できる.パスワード文字列などの指定も可能.

    $ termux-dialog -h
    Usage: termux-dialog [-i hint] [-m] [-p] [-t title]
    Show a text entry dialog.
      -i hint   the input hint to show when the input is empty
      -m        use a textarea with multiple lines instead of a single
      -p        enter the input as a password
      -t title  the title to show for the input prompt
    
    $ echo `termux-dialog`
    hoge
    

    28037547727_edb2027c2c_o

    $ echo `termux-dialog -i hint -m -t termux\ dialog`|od -xc
    0000000   h   o   g   e       f   u   g   a  \n
            6f68 6567 6620 6775 0a61
    0000012
    

    28037548487_5ff4a35999_o

    $ echo `termux-dialog -p`
    passwordddd
    

    42188267074_de542c5ee6_o

  • termux-download

    指定したURLからダウンロードが出来る.Androidのダウンロードアプリに渡される.(単にファイル取得ならwgetが入っている)

    $ termux-download -h
    Usage: termux-download [-d description] [-t title] url-to-download
    Download a resource using the system download manager.
      -d description  description for the download request notification
      -t title        title for the download request notification
    
  • termux-fingerprint

    指紋認証を行う?(未確認)

    $ termux-fingerprint -h
    Usage: termux-fingerprint
    Use fingerprint sensor on device to check for authentication
    NOTE: Only available on Marshmallow and later
    $ termux-fingerprint
    {
      "errors": [
        "ERROR_UNSUPPORTED_OS_VERSION"
      ],
      "failed_attempts": 0,
      "auth_result": "AUTH_RESULT_UNKNOWN"
    
  • termux-infrared-frequencies

    赤外線通信情報を取得?(未確認)

    $ termux-infrared-frequencies -h
    Usage: termux-infrared-frequencies
    Query the infrared transmitter's supported carrier frequencies.
    $ termux-infrared-frequencies
    []
    
  • termux-infrared-transmit

    赤外通信で送信する?(未確認)

    $ termux-infrared-transmit -h
    Usage: termux-infrared-transmit -f frequency pattern
    Transmit an infrared pattern. The pattern is specified in comma-separated on/off intervals, such as '20,50,20,30'. Only patterns shorter than 2 seconds will be transmitted.
      -f frequency  IR carrier frequency in Hertz
    
  • termux-location

    位置情報を取得.GPSを利用すると時間が掛かる.位置情報が取得できない場合はタイムアウト後何も帰ってこない.タイムアウトは65秒前後.

    $ termux-location -h
    usage: termux-location [-p provider] [-r request]
    Get the device location.
      -p provider  location provider [gps/network/passive] (default: gps)
      -r request   kind of request to make [once/last/updates] (default: once)
    $ termux-location -p gps
    $ termux-location -p network  
    {
      "latitude": 31.2529767,
      "longitude": 130.8509959,
      "altitude": 0.0,
      "accuracy": 19.31999969482422,
      "bearing": 0.0,
      "speed": 0.0,
      "elapsedMs": 39,
      "provider": "network"
    }
    $ termux-location -p passive
    {
      "latitude": 34.77000045776367,
      "longitude": 138.4600067138672,
      "altitude": 0.0,
      "accuracy": 976974.0625,
      "bearing": 81.0,
      "speed": 0.0,
      "elapsedMs": 5,
      "provider": "fused"
    }
    
  • termux-media-player
    メディアの再生,操作

    $ termux-media-player -h
    termux-media-player: Invalid cmd: '-h'
    Usage: termux-media-player cmd [args]
    
    help        Shows this help
    info        Displays current playback information
    play        Resumes playback if paused
    play <file> Plays specified media file
    pause       Pauses playback
    stop        Quits playback
    $ termux-media-player play 
    No previous track to resume!
    Please supply a new media file
    $ termux-media-player play /storage/sdcard1/Android/data/com.bambuna.podcastaddict/files/podcast/エッジのたたないポッドキャスト/MzoRbgzFVe_3248.mp3
    Now Playing: MzoRbgzFVe_3248.mp3
    $ termux-media-player pause
    Paused playback
    $ termux-media-player play
    Resumed playback
    Track: MzoRbgzFVe_3248.mp3
    Current Position: 00:27 / 13:39
    $ termux-media-player info  
    Status: Playing
    Track: MzoRbgzFVe_3248.mp3
    Current Position: 01:10 / 13:39
    $ termux-media-player info
    No track currently!
    $ termux-media-player play photo.jpg
    
    Prepare failed.: status=0x1
    
  • termux-media-scan

    メディアをスキャンする?

    $ termux-media-scan -h
    Usage: termux-media-scan [-v] [-r] file [file...]
    Scan the specified file(s) and add it to the media content provider.
      -r  scan directories recursively
      -v  verbose mode
    $ termux-media-scan -r /storage/sdcard1/Android/data/com.bambuna.podcastaddict/files/podcast/エッジのたたないポッドキャスト
    Finished scanning 2 file(s)
    $ termux-media-scan -r -v /storage/sdcard1/Android/data/com.bambuna.podcastaddict/files/podcast/エッジのたたないポッドキャスト
    /storage/sdcard1/Android/data/com.bambuna.podcastaddict/files/podcast/エッジのたたないポッドキャスト
    /storage/sdcard1/Android/data/com.bambuna.podcastaddict/files/podcast/エッジのたたないポッドキャスト/MzoRbgzFVe_3248.mp3
    Finished scanning 2 file(s)
    $ termux-media-player info
    No track currently!
    
  • termux-microphone-record

    録音をする.出力ファイル形式は3GPPのよう

    $ termux-microphone-record -h
    Usage: termux-microphone-record [args]
    Record using microphone on your device
    
    -h           Shows this help
    -d           Start recording w/ defaults
    -f <file>    Start recording to specific file
    -l <limit>   Start recording w/ specified limit (in seconds)
    -i           Get info about current recording
    -q           Quits recording
    $ termux-microphone-record -d -f termux-record.mp3 -l 10
    Recording started: /data/data/com.termux/files/home/termux-record 
    Max Duration: 00:10
    $ termux-microphone-record -i
    {
      "isRecording": true,
      "outputFile": "\/data\/data\/com.termux\/files\/home\/termux-record"
    }
    $ termux-microphone-record -i
    {
      "isRecording": false
    }
    file ./termux-record
    ./termux-record: ISO Media, MPEG v4 system, 3GPP
    $ mv ./termux-record ./termux-record.3gpp
    $ termux-media-player play ./termux-record.3gpp
    Now Playing: termux-record.3gpp
    
  • termux-notification

    通知を出力する.タイトル,メッセージ以外にもバイブレーションやサウンド,LEDなども操作できる.

    $ termux-notification -h
    Usage: termux-notification [options]
    Display a system notification. Context text is read from stdin or specified using --content.
      --action action          action to execute when pressing the notification
      --button1 text           text to show on the first notification button
      --button1-action action  action to execute on the first notification button
      --button2 text           text to show on the second notification button
      --button2-action action  action to execute on the second notification button
      --button3 text           text to show on the third notification button
      --button3-action action  action to execute on the third notification button
      --content content        content to show in the notification. Read from stdin not specified here.
      --id id                  notification id (will overwrite any previous notification with the same id)
      --led-color rrggbb       color of the blinking led as RRGGBB (default: none)
      --led-on milliseconds    number of milliseconds for the LED to be on while it's flashing (default: 800)
      --led-off milliseconds   number of milliseconds for the LED to be off while it's flashing (default: 800)
      --on-delete action       action to execute when the the notification is cleared
      --priority prio          notification priority (high/low/max/min/default)
      --sound                  play a sound with the notification
      --title title            notification title to show
      --vibrate pattern        vibrate pattern, comma separated as in 500,1000,200
    $ termux-notification --title hoge --content fuga
    

    Screenshot_2018-06-21-00-54-59

  • termux-notification-remove

    termux-notification -idで指定したidのメッセージを削除する.

    $ termux-notification-remove -h
    Usage: termux-notification-remove notification-id
    Remove a notification previously shown with termux-notification --id.
    $ termux-notification --content hoge --id tm01
    $ termux-notification-remove tm01
    
  • termux-sensor

    センサーの値を取得する.センサーの値は定期的に表示される(既定値は多分1秒間隔)

    $ termux-sensor -h
    Usage: termux-sensor
    Get information about types of sensors as well as live data
      -h, help           Show this help
      -a, all            Listen to all sensors (WARNING! may have battery impact)
      -c, cleanup        Perform cleanup (release sensor resources)
      -l, list           Show list of available sensors
      -s, sensors [,,,]  Sensors to listen to (can contain just partial name)
      -d, delay [ms]     Delay time in milliseconds before receiving new sensor update
    $ termux-sensor -l
    {
      "sensors": [
        "BMA2X2 Accelerometer\/Temperature\/Double-tap",
        "AK8963 Magnetometer",
        "AK8963 Magnetometer Uncalibrated",
        "BMG160 Gyroscope",
        "BMG160 Gyroscope Uncalibrated",
        "APDS-9930\/QPDS-T930 Proximity & Light",
        "APDS-9930\/QPDS-T930 Proximity & Light",
        "Gravity",
        "Linear Acceleration",
        "Rotation Vector",
        "Step Detector",
        "Step Counter",
        "Significant Motion Detector",
        "Game Rotation Vector",
        "GeoMagnetic Rotation Vector",
        "Orientation"
      ]
    }
    $ termux-sensor -s "BMA2X2 Accelerometer\/Temperature\/Double-tap"
    No valid sensors were registered!
    $ termux-sensor -s "AK8963 Magnetometer"
    {
      "AK8963 Magnetometer": {
        "values": [
          -11.248207092285156,
          -37.157630920410156,
          23.89850616455078
        ]
      }
    }
    {
      "AK8963 Magnetometer": {
        "values": [
          16.16058349609375,
          -33.7738037109375,
          -13.971900939941406
        ]
      }
    }
    {
      "AK8963 Magnetometer": {
        "values": [
          3.6207199096679688,
          -38.532447814941406,
          -17.789649963378906
        ]
      }
    }
    ^CCaught interrupt.. Finishing...
    Performing sensor cleanup
    Sensor cleanup successful!
    $ termux-sensor -s "AK8963 Magnetometer Uncalibrated"
    {
      "AK8963 Magnetometer Uncalibrated": {
        "values": [
          -18.68438720703125,
          -71.844482421875,
          195.37200927734375,
          -26.05126953125,
          -30.462646484375,
          221.81549072265625
        ]
      }
    }
    {
      "AK8963 Magnetometer Uncalibrated": {
        "values": [
          -18.6492919921875,
          -70.87860107421875,
          196.197509765625,
          -26.05126953125,
          -30.462646484375,
          221.81549072265625
        ]
      }
    }
    ^CCaught interrupt.. Finishing...
    Performing sensor cleanup
    Sensor cleanup successful!
    $ termux-sensor -s "BMG160 Gyroscope"
    {
      "BMG160 Gyroscope": {
        "values": [
          8.544921875E-4,
          8.087158203125E-4,
          8.544921875E-4
        ]
      }
    }
    ^CCaught interrupt.. Finishing...
    Performing sensor cleanup
    Sensor cleanup successful!
    $ termux-sensor -s "BMG160 Gyroscope Uncalibrated"
    {
      "BMG160 Gyroscope Uncalibrated": {
        "values": [
          -0.006317138671875,
          0.002044677734375,
          0,
          -0.006103517021983862,
          0.0012359619140625,
          -8.544921875E-4
        ]
      }
    }
    ^CCaught interrupt.. Finishing...
    Performing sensor cleanup
    Sensor cleanup successful!
    $ termux-sensor -s "APDS-9930\/QPDS-T930 Proximity & Light"
    No valid sensors were registered!
    $ termux-sensor -s "Gravity"
    {
      "Gravity": {
        "values": [
          1.4136531352996826,
          -1.045373558998108,
          9.647754669189453
        ]
      }
    }
    ^CCaught interrupt.. Finishing...
    Performing sensor cleanup
    Sensor cleanup successful!
    $ termux-sensor -s "Linear Acceleration"
    {
      "Linear Acceleration": {
        "values": [
          -0.0018668174743652344,
          0.005246162414550781,
          0.001544952392578125
        ]
      }
    }
    ^CCaught interrupt.. Finishing...
    Performing sensor cleanup
    Sensor cleanup successful!
    $ termux-sensor -s "Rotation Vector"
    {
      "Rotation Vector": {
        "values": [
          0.07332251220941544,
          -0.0574394166469574,
          0.9877411723136902,
          0.12526708841323853,
          0.1745329201221466
        ]
      }
    }
    ^CCaught interrupt.. Finishing...
    Performing sensor cleanup
    Sensor cleanup successful!
    $ termux-sensor -s "Step Detector"
    {}
    ^CCaught interrupt.. Finishing...
    Performing sensor cleanup
    Sensor cleanup successful!
    $ termux-sensor -s "Step Counter"
    {
      "Step Counter": {
        "values": [
          0
        ]
      }
    }
    ^CCaught interrupt.. Finishing...
    Performing sensor cleanup
    Sensor cleanup successful!
    $ termux-sensor -s "Significant Motion Detector"
    {}
    {}
    ^CCaught interrupt.. Finishing...
    Performing sensor cleanup
    Sensor cleanup successful!
    $ termux-sensor -s "Game Rotation Vector"
    {
      "Game Rotation Vector": {
        "values": [
          -0.04727154225111008,
          -0.08051935583353043,
          0.005690218415111303,
          0.9956152439117432
        ]
      }
    }
    ^CCaught interrupt.. Finishing...
    Performing sensor cleanup
    Sensor cleanup successful!
    $ termux-sensor -s "GeoMagnetic Rotation Vector"
    {
      "GeoMagnetic Rotation Vector": {
        "values": [
          0.07260913401842117,
          -0.05879773199558258,
          0.9851652383804321,
          0.14394499361515045,
          0.1745329201221466
        ]
      }
    }
    ^CCaught interrupt.. Finishing...
    Performing sensor cleanup
    Sensor cleanup successful!
    $ termux-sensor -s "Orientation"
    {
      "Orientation": {
        "values": [
          194.80770874023438,
          5.517017364501953,
          9.214399337768555
        ]
      }
    }
    ^CCaught interrupt.. Finishing...
    Performing sensor cleanup
    Sensor cleanup successful!
    
  • termux-share

    引数に指定されたファイルを共有する.

    $ termux-share -h
    Usage: termux-share [-a action] [-c content-type] [-d] [-t title] [file]
    Share a file specified as argument or the text received on stdin if no file argument is given.
      -a action        which action to performed on the shared content:
                         edit/send/view (default:view)
      -c content-type  content-type to use (default: guessed from file extension,
                         text/plain for stdin)
      -d               share to the default receiver if one is selected
                         instead of showing a chooser
      -t title         title to use for shared content (default: shared file name)
    $ termux-share photo.jpg 
    
  • termux-sms-inbox

    受信済のSMSメッセージを読み込む.(未確認.SIMなし端末で試したら0件表示された)

    $ termux-sms-inbox -h
    Usage: termux-sms-inbox [-d] [-l limit] [-n] [-o offset]
    List received SMS messages.
      -d         show dates when messages were created
      -l limit   offset in sms list (default: 10)
      -n         show phone numbers
      -o offset  offset in sms list (default: 0)
    $ termux-sms-inbox
    
  • termux-sms-send

    smsメッセージを送信する.(未確認)

    $ termux-sms-send -h
    Usage: termux-sms-send -n number[,number2,number3,...] [text]
    Send a SMS message to the specified recipient number(s). The text to send is either supplied as arguments or read from stdin if no arguments are given.
      -n number(s)  recipient number(s) - separate multiple numbers by commas
    $ termux-sms-send -n 電話番号 message
    
  • termux-speech-to-text

    音声認識した結果を表示する.端末上では空行しか見えないがodに流すと文字列が帰っているのが解る.多分英語のみ?

    $ termux-speech-to-text -h
    Usage: termux-speech-to-text
    Converts speech to text, sending partial matches to stdout.
    $ termux-speech-to-text
    
    
    
    
    
    $ termux-speech-to-text|od -xc
    0000000  \n  \n  \n   H   u   d   l  \n
            0a0a 480a 6475 0a6c
    0000010
    
  • termux-storage-get

    システムに指定したファイルを渡して開く?反応がない.

    $ termux-storage-get -h
    Usage: termux-storage-get output-file
    Request a file from the system and output it to the specified file.
    $ termux-storage-get photo.jpg 
    
  • termux-telephony-call

    指定した番号に電話を掛ける(mobile回線は未確認だが,電話のみでもアプリ選択画面にはなるのでWi-FiのみでもSIPなどで電話することは多分可能)

    $ termux-telephony-call -h
    Usage: termux-telephony-call <number>
    Call a telephony number.
    $ termux-telephony-call 電話番号
    
  • termux-telephony-cellinfo

    電話基地局情報を取得?

    $ termux-telephony-cellinfo -h
    Usage: termux-telephony-cellinfo
    Get information about all observed cell information from all radios on the device including the primary and neighboring cells.
    $ termux-telephony-cellinfo
    [
      {
        "type": "wcdma",
        "registered": true,
        "asu": 6,
        "dbm": -101,
        "level": 2,
        "cid": 249053510,
        "lac": 25994,
        "mcc": 440,
        "mnc": 10,
        "psc": 33
      }
    ]
    

     

  • termux-telephony-deviceinfo

    テレフォニーデバイス情報を取得?

    $ termux-telephony-deviceinfo -h
    Usage: termux-telephony-deviceinfo
    Get information about the telephony device.
    $ termux-telephony-deviceinfo
    {
      "data_activity": "none",
      "data_state": "disconnected",
      "device_id": "357931051XXXXXXX",
      "device_software_version": "81",
      "phone_type": "gsm",
      "network_operator": "",
      "network_operator_name": "",
      "network_country_iso": "",
      "network_type": "unknown",
      "network_roaming": false,
      "sim_country_iso": "",
      "sim_operator": "",
      "sim_operator_name": "",
      "sim_serial_number": null,
      "sim_subscriber_id": null,
      "sim_state": "absent"
    }
    
  • termux-toast

    Toast(一時的なポップアップ)メッセージを表示する

    $ termux-toast -h
    Usage: termux-toast [-s] [text]
    Show text in a Toast (a transient popup). The text to show is either supplied as arguments or read from stdin if no arguments are given.
     -s  only show the toast for a short while
    $ termux-toast hello
    

    Screenshot_2018-06-21-01-57-40

  • termux-torch

    トーチをon/offする?手元の環境では反応がなかった.

    $ termux-torch -h
    Illegal parameter: -h
    Usage: termux-torch [on | off]
    Toggle LED Torch on device
    $ termux-torch on
    ^C
    
  • termux-tts-engines

    テキスト読み上げエンジン(tts)の一覧を表示する

    $ termux-tts-engines -h
    Usage: termux-tts-engines
    Get information about the available text-to-speech (TTS) engines. The name of an engine may be given to the termux-tts-speak command using the -e option.
    $ termux-tts-engines
    [
      {
        "name": "com.google.android.tts",
        "label": "Googleテキスト読み上げエンジン",
        "default": false
      },
      {
        "name": "jp.kddilabs.n2tts",
        "label": "KDDILABS N2 TTS",
        "default": true
      }
    ]
    
  • termux-tts-speak

    テキスト読み上げを行う.日本語に対応したttsであれば日本語も問題ない.標準入力からも受け付けるので記事や小説の読み上げも簡単.

    $ termux-tts-speak こんにちは
    $ echo '吾輩は猫である' | termux-tts-speak
    $ w3m -dump https://www.aozora.gr.jp/cards/000148/files/789_14547.html | termux-tts-speak
    
  • termux-vibrate

    バイブレートを実行.長さの指定やサイレントモードでも強行するモードもある.

    $ termux-vibrate -h
    Usage: termux-vibrate [-d duration] [-f]
    Vibrate the device.
      -d duration  the duration to vibrate in ms (default:1000)
      -f           force vibration even in silent mode
    $ termux-vibrate
    
  • termux-volume
    ボリュームの変更.手元の環境では0〜15で数字が大きいほど音量が大きくなった.16以上を指定しても15と同じ動きになった.

    $ termux-volume -h
    Invalid argument count
    Usage: termux-volume stream volume
    Change volume of audio stream
    Valid audio streams are: alarm, music, notification, ring, system, call
    Call w/o arguments to show information about each audio stream
    $ termux-volume music 5
    
  • termux-wallpaper

    壁紙を設定.位置合わせや切り抜き指定は出来ない.-uが便利.

    $ termux-wallpaper -h
    Change wallpaper on your device
    
    Usage: termux-wallpaper cmd [args]
    -h         show this help
    -f <file>  set wallpaper from file
    -u <url>   set wallpaper from url resource
    -l         set wallpaper for lockscreen (Nougat and later)
    $ termux-wallpaper -u https://www.nasa.gov/sites/default/files/styles/full_width_feature/public/thumbnails/image/pia22422.jpg
    Wallpaper set successfully!
    
  • termux-wifi-connectioninfo

    Wi-Fi接続情報を表示.

    $ termux-wifi-connectioninfo -h
    Usage: termux-wifi-connectioninfo
    Get information about the current wifi connection.
    $ termux-wifi-connectioninfo
    {
      "bssid": "10:6f:3f:XX:XX:XX",
      "frequency_mhz": 2462,
      "ip": "192.168.2.211",
      "link_speed_mbps": 54,
      "mac_address": "68:76:4f:XX:XX:XX",
      "network_id": 0,
      "rssi": -51,
      "ssid": "home-ap",
      "ssid_hidden": false,
      "supplicant_state": "COMPLETED"
    }
    
  • termux-wifi-enable

    Wi-Fiの有効無効設定.

    $ termux-wifi-enable -h
    Usage: termux-wifi-enable [true | false]
    Toggle Wi-Fi On/Off
    $ termux-wifi-enable false
    
    $ termux-wifi-enable true
    
    
  • termux-wifi-scaninfo

    Wi-Fiスキャン結果を表示.

    $ termux-wifi-scaninfo -h
    Usage: termux-wifi-scaninfo
    Get information about the last wifi scan.
    $ termux-wifi-scaninfo
    [
      {
        "bssid": "12:6f:3f:XX:XX:XX",
        "frequency_mhz": 2462,
        "rssi": -55,
        "ssid": "home-guest",
        "timestamp": 2978153233
      },
      {
        "bssid": "10:6f:3f:XX:XX:XX",
        "frequency_mhz": 2462,
        "rssi": -54,
        "ssid": "home-ap",
        "timestamp": 2978153243
      },
      {
        "bssid": "10:6f:3f:XX:XX:XX",
        "frequency_mhz": 2447,
        "rssi": -78,
        "ssid": "matohara",
        "timestamp": 2978153249
      }
    ]
    

Androidアプリケーションを作成しなくてもちょっとしたことならこのAPIの組み合わせで遊ぶことができそうです.(bash+Zenityみたいな?ちょっとちがうか)
Termux:Task/Boot等と組み合わせると更に活用の幅は広がりそうです.(未確認)

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