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Here are some useful sed commands for file editing

sed 10q demo.txt - prints first 10 lines

sed -i'.bak' 's/hello/bar/' demo.txt - replace the first "hello" on each line with "bar"

sed -i'.bak' 's/hello/bar/g' demo.txt - replace the ALL "hello" on each line with "bar"

sed -i'.bak' '3d' demo.txt - remove the 3rd line in a file

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How to restore an image (.dmg) to a sdcard?

The image you want to use when recovering should be crated earlier. The sdcard should be empty or the data on it will be lost.

First, the image should be converted to a pure image. This can be dane with the following command:

hdiutil convert sdcard_image.dmg -format UDTO -o sdcard_pure_image.img

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Bridging Native & React for iOS & Android

js -> native

• Simple Example
• Callbacks
• Promises
• Properties

native -> js

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If you face any problems like missig keystore

" keytool error: java.lang.Exception: Keystore file does not exist: "

You have to create a default keystore in your JAVA_HOME.

JAVA_HOME/jre/lib/security/cacerts cacerts default password is changeit. This file is important and should be secured. You can read more here

Once that's done you should be able to use mkcert.

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//this is jsut the "meat" of the solution
const PEPPERFLASH_PLUGIN = 'resources/pepperFlash/mac/PepperFlashPlayer.plugin'
let pluginName
let pluginDir = __dirname
switch (process.platform) {
    case 'win32':
        switch (process.arch) {
            case "x64":
                pluginName = PEPPERFLASH_PLUGIN_WIN64
                break;

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{
"asarUnpack" : ["resources/pepperFlash/mac"]
}

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//this is jsut the "meat" of the solution
const PEPPERFLASH_PLUGIN = __dirname.indexOf("asar") >=0 ? '../resources/pepperFlash/mac/PepperFlashPlayer.plugin' : 'resources/pepperFlash/mac/PepperFlashPlayer.plugin'
let pluginName
switch (process.platform) {
    case 'win32':
        switch (process.arch) {
            case "x64":
                pluginName = PEPPERFLASH_PLUGIN_WIN64
                break;
            default:

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let toBGN = (value) => {
    
    let under10 = (value, currency = false) => {
      let index = Math.floor(value)
      if(index > 10) {
        index = 10;
      }
      let resultArray =
      [
        "нула", "един", "два", "три", "четири", "пет", "шест",

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#!/bin/bash
FILES=*.jpg
mkdir out
for f in $FILES
do
  echo "Processing $f file..."
  # take action on each file. $f store current file name
  convert $f -resize 2000x2000\>  out/$f
done

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REM add watermark to all JPG images in the same folder
REM resize all JPG images in the same folder
REM put the result in different folder
SET IMAGE_MAGICK="C:\Program Files\ImageMagick-7.0.10-Q16\magick.exe"
SET SIZE=700x700

mkdir watermark
mkdir resize

for /F "usebackq delims=" %%i in (`dir /a:-d /b %foldername%\*.jpg`) do %IMAGE_MAGICK% %%i ( watermark.png  ) -gravity center -composite watermark\%%i