NKid's 預防痴呆筆記本

`?` is an abreviation of Where-Object

Get-ChildItem "C:\" | ? { $_.PsIsContainer} | ft -AutoSize

`%` is an abreviation of Foreach

Get-ChildItem "C:\" | % { write-host $_.BaseName}

foreach顯示index

$myObjs = @([PSCustomObject] @{Name="Jack"; Age="10";},
            [PSCustomObject] @{Name="Tom"; Age="15";})
$myObjs | foreach-object{$counter = 0}{
    Write-Host $counter - $_.Name is $_.Age years old.
    $counter++
}

This Is a cat

'This', 'Is', 'a', 'cat' | & {"$input"}

This-Is-a-cat

'This', 'Is', 'a', 'cat' | & {$ofs='-';"$input"}

ffmpeg -i input.mp4 -ss 00:01:00 -to 00:02:00 -c copy output.mp4

-i: This specifies the input file. In that case, it is (input.mp4).
-ss: Used with -i, this seeks in the input file (input.mp4) to position.
00:01:00: This is the time your trimmed video will start with.
-to: This specifies duration from start (00:01:40) to end (00:02:12).
00:02:00: This is the time your trimmed video will end with.
-c copy: This is an option to trim via stream copy. (NB: Very fast)

linux - Cutting the videos based on start and end time using ffmpeg - Stack Overflow

輸入*##*37847#，確認LCD為S6E3FA5 SAMSUNG
使用script啟用

su
echo 1 > sys/devices/virtual/graphics/fb0/DCI_P3

Enable DCI-P3 for OP3T with S6E3FA5 display … | OnePlus 3T

設定腳本執行權限

chmod +x script1.sh

設定cron

crontab -e
*/3 * * * * /home/pi/MyShellScript/script1.sh

Scheduling tasks with Cron - Raspberry Pi Documentation
Setting up permissions on a script - Linux Shell Scripting Tutorial - A Beginner's handbook

安裝ViPER4Android FX v2.5.0.5

3T OOS 3.5.4/4.5.1 測試OK

先安裝BusyBox

將permissive.sh放入/su/su.d

permissive.sh

#!/system/bin/sh
setenforce 0

設定permissive.sh，權限為755
重新開機
檢查SELinux狀態

$ adb shell
shell@OnePlus3T:/ $ getenforce
Permissive

安裝ViPER4Andriod.apk
開啟ViPER4Android，安裝驅動程式
重新開機
播放音樂，並檢查處理中：是

如果驅動程式安裝正常，但處理中：否
將/system/vendor/etc/audio_effects.config更名為audio_effects.config.bak

REF

官方rom安装viper4android(v4a)音效的方法 - 一加手机3T - 一加手机社区官方论坛
 折騰無果？先試試禁用 SELinux - 少數派

/system/build.prop
fw.show_multiuserui=0
Reboot

REF

multi user - Is there a way to remove the Guest account? - Android Enthusiasts Stack Exchange

Data vs Internal Storage

Data

Data is your user apps (installed from Google Play Store, or with an *.apk) and its app data. It is stored on /data.

Your user apps is stored on /data/app.
Your apps' data is stored on /data/data.

NOTE: You must be rooted to see the contents on /data/ ...

Internal Storage

On the other hand, Internal Storage is actually the storage where your other data are saved, such as music, photos, videos, other app data, downloads, etc., and is usually stored on /storage or /sdcard.

NOTE: /sdcard is different from your external SD Card.

Music is saved on /sdcard/Music.
Photos are saved on /sdcard/DCIM.
Videos are saved on /sdcard/Videos.
Other app data are saved on /sdcard/ (App Folder).
Other apps choose to store their app data on /sdcard/ ..., such as Minecraft: /sdcard/games.
Downloads are saved on /sdcard/Downloads, and can be easily found if you have the Downloads app.

REF

rom flashing - What's the difference between Data and Internal Storage? - Android Enthusiasts Stack Exchange

OnePlus 3T OOS 3.5.4 刪除Debloater

system app

/system/app/AndroidPay
/system/app/BasicDreams
/system/app/BookmarkProvider
/system/app/Galaxy4
/system/app/GoogleTTS
/system/app/HoloSpiralWallpaper
/system/app/LogKitSdService
/system/app/Music2
/system/app/NoiseField
/system/app/OemAutoTestServer
/system/app/OEMLogKit
/system/app/OPBugReport
/system/app/OpenWnn
/system/app/PartnerBookmarksProvider
/system/app/PhaseBeam
/system/app/Photos
/system/app/Stk
/system/app/SwiftKey
/system/app/SwiftKeyFactorySettings
/system/app/talkback
/system/app/Videos
/system/app/YuloreFramework

priv-app

/system/priv-app/OPDeviceManager
/system/priv-app/OPDeviceManagerProvider

ELSE

/system/bin/oemlogkit
/system/bin/fmfactorytest
/system/bin/fmfactorytestserver
/system/bin/WifiLogger_app
/system/bin/bugreport
/system/bin/logcat
/system/tts
/system/com.touchtype
/system/recovery-from-boot.bak
/system/etc/recovery-resource.dat
/system/etc/usb_drivers.iso
/system/etc/oneplus_ftm_test.wav
/system/vendor/etc/in_apps

Disabled App

天氣
檔案管理
錄音機
ANT HAL Service
Exchange 服務
NVBackupUI
列印多工緩衝處理器
區域廣播
系統更新

OnePlus 3T (A3010陸版) 128GB 初見面

安裝驅動

手機連接至電腦後，會新增一台光碟機
裡面有驅動程式，OnePlus_USB_Drivers_Setup.exe

開始刷機

開啟『開發人員選項』

開啟OEM 解鎖
開啟進階重新啟動
開啟USB 偵錯

驅動測試

開機狀態, 輸入adb devices
Bootloader mode, 輸入fastboot devices (Android Bootloader Interface)
TWRP Sideload, 輸入adb devices

OEM解鎖

進入Bootloader mode
fastboot oem unlock

刷入TWRP

進入Bootloader mode
fastboot flash recovery Z:\twrp-3.0.4-1-oneplus3.img
使用音量鍵選擇Recovery Mode，按電源鍵確定
進入TWRP，向右滑動(允許系統修改，會觸發dm-verity)
備份EFS

解除加密

進入TWRP
adb sideload no-verity-opt-encrypt-5.1.zip
Reboot → Recovery
Wipe → Format Data

如果Failed，請至Bootloader mode，使用fastboot format userdata

Root

進入TWRP
adb sideload SR3-SuperSU-v2.79-SR3-20170114223742.zip
Reboot → System

dm_verity

進入Bootloader mode
fastboot oem disable_dm_verity
fastboot oem enable_dm_verity

OnePlus 3T (A3010陸版) 使用adb備份EFS

指令

adb shell
su
dd if=/dev/block/sdf1 of=/sdcard/modemst1.bin bs=512
dd if=/dev/block/sdf2 of=/sdcard/modemst2.bin bs=512
exit
exit
adb pull /sdcard/modemst1.bin ./
adb pull /sdcard/modemst2.bin ./

REF

[OnePlus 3T]OnePlusの作法をお勉強 – BOOLEE STREET.net

OnePlus 3T (A3010陸版) 氫刷氧OS

Bootloader Lock

至OnePlus 3T | Downloads - OnePlus.net下載氧os安裝包
將安裝包放到手機根目錄(/sdcard)
設定 → 系統更新 → 右上角選單 → 本地更新
選定下載的氧os安裝包並確認更新
更新完後系統會自動重開機，此時不做仍任何設定直接手動關機
按下電源鍵並同時按下音量鍵(-)進入recovery模式
進入recovery模式後，選擇：清除數據和緩存\清除系統數據和緩存
重開機後即完成

Bootloader Unlock (使用TWRP)

進入TWRP
Install
選取OnePlus3TOxygen_28_OTA_029_all_1612131737_17e7161d2b234949.zip

	========================================== ==========================================
	TMUX COMMAND WINDOW (TAB)
	========================================== ==========================================
	List tmux ls List ^b w
	New new -s <session> -n <name> Create ^b c
	Attach att -t <session> Rename ^b , <name>
	Rename rename-session -t <old> <new> Last ^b l (lower-L)
	Kill kill-session -t <session> Close ^b &
	========================================== Goto # ^b <0-9>
	CONTROLS Next ^b n
	========================================== Previous ^b p
	Detach ^b d Choose ^b w <name>
	List ^b = ==========================================
	Buffer ^b <PgUpDn> PANE (SPLIT WINDOW)
	Command ^b : <command> ==========================================
	Copy ^b [ ... <space> ... <enter> Show # ^b q
	Moving vim/emacs key bindings Split Horiz ^b " --------
	Start <space> Split Vert ^b % \|
	Copy <enter> Pane->Window ^b !
	Paste ^b ] Kill ^b x
	========================================== Reorganize ^b <space>
	SESSION (Set of Windows) Expand ^b <alt><arrow>
	========================================== Resize ^b ^<arrow>
	New ^b :new ^b :new -s <name> Resize x n ^b <n> <arrow>
	Rename ^b $ Select ^b <arrow>
	List ^b s Previous ^b {
	Next ^b ( Next ^b }
	Previous ^b ) Switch ^b o other
	Swap ^b ^o
	Last ^b ;

	function sleep(ms) {
	return new Promise(resolve => setTimeout(resolve, ms));
	};
	async function sequence() {
	let chkJobs = [];
	for (let i = 1, max = 10; i < max; i++) {
	let intRand = Math.floor((Math.random() * 5) + 1) * 1000;
	await sleep(intRand);
	console.log('[sequence] %s,delay %sms', i, intRand);
	}
	console.log('AllDone');
	}

	sequence();
	// === Result ===
	// [sequence] 1,delay 4000ms
	// [sequence] 2,delay 1000ms
	// [sequence] 3,delay 5000ms
	// [sequence] 4,delay 5000ms
	// [sequence] 5,delay 3000ms
	// [sequence] 6,delay 3000ms
	// [sequence] 7,delay 4000ms
	// [sequence] 8,delay 4000ms
	// [sequence] 9,delay 5000ms
	// AllDone
	// [Finished in 34.3s]
	// === Result ===

	function sleep(ms) {
	return new Promise(resolve => setTimeout(resolve, ms));
	};

	function parallel() {
	let chkJobs = [];
	for (let i = 1, max = 10; i < max; i++) {
	let intRand = Math.floor((Math.random() * 10) + 1) * 1000;
	chkJobs.push(new Promise(async(resolve, reject) => {
	await sleep(intRand);
	console.log('[parallel] %s,delay %sms', i, intRand);
	resolve(i);
	}));
	}
	Promise.all(chkJobs).then(values => {
	console.log('[parallel] AllDone');
	});
	}

	parallel();
	// === Result ===
	// [parallel] 2,delay 1000ms
	// [parallel] 6,delay 2000ms
	// [parallel] 4,delay 3000ms
	// [parallel] 1,delay 4000ms
	// [parallel] 7,delay 5000ms
	// [parallel] 8,delay 7000ms
	// [parallel] 3,delay 8000ms
	// [parallel] 5,delay 8000ms
	// [parallel] 9,delay 8000ms
	// [parallel] AllDone
	// [Finished in 8.2s]
	// === Result ===

	let tmp = [0, 1, 2, 3, 4, 5, 6],
	chkJobs = [];
	for (let i = 0, max = tmp.length; i < max; i++) {
	chkJobs.push(new Promise((resolve, reject) => {
	let intRndSec = 1000 * Math.floor((Math.random() * 9) + 1);
	setTimeout(function() {
	console.log('Done => index:%s, timeout:%sms', i, intRndSec);
	resolve(i);
	}, intRndSec);
	}));
	}
	console.log('Hello');
	Promise.all(chkJobs).then(values => {
	console.log(values);
	});
	// === Result ===
	// Hello
	// Done => index:2, timeout:1000ms
	// Done => index:4, timeout:2000ms
	// Done => index:5, timeout:2000ms
	// Done => index:0, timeout:4000ms
	// Done => index:6, timeout:5000ms
	// Done => index:3, timeout:6000ms
	// Done => index:1, timeout:8000ms
	// [ 0, 1, 2, 3, 4, 5, 6 ]
	// === Result ===

標籤

? is an abreviation of Where-Object

% is an abreviation of Foreach