Database Info

Must-know Command Line (Terminal) hacks for Developers

Using various command lines tools of Linux can make working very easy for developers. Here are a few tricks than can really help out.
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"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
1. grep
I cannot emphasize on this tool more, this utility is your one stop destination for searching anything. Want to look for all .so files in a folder? Type in
Code:
ls | grep .so
Or maybe a '.so' (library) file that starts with 'mtk' (e.g. mtkOmxVenc.so)
Code:
ls | grep mtk*.so
Or what if a '.so' (library) file that has 'Omx' somewhere in the name
Code:
ls | grep *Omx*.so
Awesome! Now that pole like character is simply called "the pipe" it pipes the output to another program, in this case grep. Now grep -s case-sensitive. To make it case insensitive, just use the -i flag with it. Now try looking for all .mp3 files in a folder!
What if you were in a folder with 1000s of files and were looking for a file with the text 'I love XDA Developers' in it? Pretty simple. Make sure your current directory is where you want to search, and type in
Code:
grep -R 'I love XDA Developers'
Great! You are becoming a command line genius! Now let's try some real world stuff. Say you want a rough idea on how many libraries or executables are somehow linked to 'libmediaservice.so'. It can be necessary when you get dlopen errors. Can you guess how to get an approximate result? Try to do it before looking any furter. Got it? 3... 2... 1... and the answer is
Code:
grep -R libmediaservice.so
Now was that too hard? Of course not!
2. head and tail
Quickly view the first few or last few lines of a text file with head or tail subsequently.
Code:
head logfile.log
Code:
tail logfile.log
3. sed
sed, short for stream editor can do tonnes of things, for now let's focus on searching and replacing. Say, we need to replace the text 'libxda.so' by 'libxdadev.so' in all the files within this current directory. We would simply command,
Code:
ls -1 | xargs sed -i 's/libxda.so/libxdadev.so/g'
(The -1 flag makes sure that ls ouputs in just ONE row, there is a better way to do this with find, we'll check that later)
4. find
This is the hypercharged version of grep; as the name implies, you can find stuff with it. For example, say you want to find all the folders under the current folder recursively.
Code:
find . -type d
[tip: . (dot) refers to the current folder]
you want to find all the files under the current folder recursively.
Code:
find . -type f
That was easy, but not too much useful. Let's try something more. Okay, here's a fun thing to do, we want to find empty files in the current folder whose name starts with 'xda', has executable permissions and is owned by 'tuxboy'.
Code:
find . -type f -name xda* -empty -executable -user tuxboy
Whoa! That was big! This baby is capable of doing so much more. Here are a few more options, self explanatory.
Code:
-empty
-fstype TYPE
-group NAME
-name PATTERN -newer FILE
-nouser
-nogroup
-path PATTERN
-perm [+-]MODE
-regex PATTERN
-readable -writable -executable
-wholename PATTERN
-size N[bcwkMG]
-type [bcdpflsD]
-user NAME
5. wc
This is the mother of all counters. You can count bytes, characters or lines in files with this tool. Want to know how many characters are there in a file?
Code:
wc -m filename.txt
Or, how many words are there in a file?
Code:
wc -w filename.txt
Or, how many lines are there in a file?
Code:
wc -l filename.txt
Or, the length of the longest line in a file?
Code:
wc -L filename.txt
Cool eh?
6. man and --help/-help/-h
Every command usually comes with some documentation. Say you want to get a short documentation on how to use the 'ls' command, at least one of the following commands should give you answers.
Code:
ls --help
Code:
ls -h
Code:
ls -help
If you want comprehensive documentation. Man is there for you!
Code:
man ls
Hope this will help you. If you have learned something new, hit Thanks!

This is beautiful, thank you :angel:.

[Tool][Windows][PowerShell] Android Platform Tools Updater (ADB & Fastboot)

Hi folks,
I've created a PowerShell script which will install or update Android Platform Tools to the latest version. It will also add the install path to Windows Environment Variables, which will make you able to type "adb" or "fastboot" in CMD from anywhere in Windows.
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"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
ADB and Fastboot from anywhere.​
Warning / Disclaimer
If this script does any harm or damage, I'm not responsible.
This project is very much a hobby project.
No guarantees are made.
You are responsible for what you do to your system.
License
I chose MIT license. You are free to use and reuse this code, but please point to the source (me) if you redestribute it.
Features
Installs latest Android Platform Tools (ADB & Fastboot).
Updates currently installed Android Platform Tools if newer version is available.
Adds Install Path to Windows Environment Variables, System Wide or Current User (controllable by boolean).
Issues of Feature Request
Please comment in the thread if you find any issues or have feature requests.
I won't guarantee fixes or new features implemented in any timely manner.
Usage
Download script from GitHub.
View as RAW.
Copy everything over to PowerShell ISE, Notepad++ or similar.
Save as "AndroidPlatformToolsUpdater.ps1".
Edit settings to your liking.
Run script as administrator.
Download
https://github.com/o-l-a-v/PowerShell-Projects/blob/master/AndroidPlatformToolsUpdater

Reserved for Changelogs

Thanks looks promising will try it out this evening

Thank you o-1-a-v!
First run I got:
Code:
Installed version is up to date (v0.0.0.0).
Add-AndroidPlatformToolsToEnvironmentVariables : Cannot validate argument on parameter 'PathDirAndroidPlatformTools'. The "[bool]$(Test-Path -Path
$_ -ErrorAction 'SilentlyContinue')" validation script for the argument with value "C:\Program Files (x86)\Android Platform Tools" did not return
a result of True. Determine why the validation script failed, and then try the command again.
At C:\Users\Xxx\Documents\AndroidPlatformToolsUpdater.ps1:335 char:104
+ ... les -PathDirAndroidPlatformTools $PathDirAndroidPlatformTools -System ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidData: (:) [Add-AndroidPlat...onmentVariables], ParentContainsErrorRecordException
+ FullyQualifiedErrorId : ParameterArgumentValidationError,Add-AndroidPlatformToolsToEnvironmentVariables
I created the "Android Platform Tools" dir, and then got:
Code:
Installed version is up to date (v0.0.0.0).
Checking and eventually adding Android Platform Tools to Current User Environment Variables. Success? True.
Running Windows 10.

andacro said:
Thank you o-1-a-v!
First run I got:
Code:
Installed version is up to date (v0.0.0.0).
Add-AndroidPlatformToolsToEnvironmentVariables : Cannot validate argument on parameter 'PathDirAndroidPlatformTools'. The "[bool]$(Test-Path -Path
$_ -ErrorAction 'SilentlyContinue')" validation script for the argument with value "C:\Program Files (x86)\Android Platform Tools" did not return
a result of True. Determine why the validation script failed, and then try the command again.
At C:\Users\Xxx\Documents\AndroidPlatformToolsUpdater.ps1:335 char:104
+ ... les -PathDirAndroidPlatformTools $PathDirAndroidPlatformTools -System ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidData: (:) [Add-AndroidPlat...onmentVariables], ParentContainsErrorRecordException
+ FullyQualifiedErrorId : ParameterArgumentValidationError,Add-AndroidPlatformToolsToEnvironmentVariables
I created the "Android Platform Tools" dir, and then got:
Code:
Installed version is up to date (v0.0.0.0).
Checking and eventually adding Android Platform Tools to Current User Environment Variables. Success? True.
Running Windows 10.
Click to expand...
Click to collapse
Thanks for feedback, I'll look into it

Updated the tool a bit today. Found more showstopper bugs. But think it's at least usefull now.
https://github.com/o-l-a-v/PowerShell-Projects/tree/master/AndroidPlatformToolsUpdater

Script updated with better logic to detect available version vs. installed version.
https://github.com/o-l-a-v/PowerShell-Projects/tree/master/AndroidPlatformToolsUpdater

Thanks for this bro

Made a script that can install ADB drivers on Windows. Not thoroughly tested, but seems to work.
C#:
#Requires -RunAsAdministrator
#Requires -Version 5.1
<#
.SYNOPSIS
Downloads and installs Google ADB drivers for Windows.
.DESCRIPTION
Downloads and installs Google ADB drivers for Windows.
* Currently there is no logic to check installed version vs. what's available.
* If already installed, running the script will just install the newest available driver again.
.NOTES
# About the script
Author: Olav Rønnestad Birkeland | github.com/o-l-a-v
Created: 220318
Modified: 220318
# Resources
* [Google ADB Drivers](https://developer.android.com/studio/run/win-usb)
* [PnPUtil return values](https://docs.microsoft.com/en-us/windows-hardware/drivers/devtest/pnputil-return-values)
.EXAMPLE
& $psISE.CurrentFile.FullPath
#>
# Input parameters
[OutputType($null)]
Param()
# Assets
$Uri = [string] 'https://dl-ssl.google.com/android/repository/latest_usb_driver_windows.zip'
$DownloadPath = [string] '{0}\{1}' -f $env:TEMP, $Uri.Split('/')[-1]
$ExtractDir = [string] $DownloadPath.Replace('.zip','')
$InfFileName = [string] 'android_winusb.inf'
# Download
Write-Output -InputObject '# Download'
if ([System.IO.File]::Exists($DownloadPath)) {
$null = [System.IO.File]::Delete($DownloadPath)
}
$null = [System.Net.WebClient]::new().DownloadFile(
$Uri,
$DownloadPath
)
Write-Output -InputObject ('$? = "{0}", $LASTEXITCODE = "{1}".' -f $?.ToString(), $LASTEXITCODE)
# Extract
Write-Output -InputObject '# Extract'
if ([System.IO.Directory]::Exists($ExtractDir)) {
$null = [System.IO.Directory]::Delete($ExtractDir,$true)
}
$null = Expand-Archive -Path $DownloadPath -DestinationPath $ExtractDir
Write-Output -InputObject ('$? = "{0}", $LASTEXITCODE = "{1}".' -f $?.ToString(), $LASTEXITCODE)
# Install .INF
Write-Output -InputObject '# Install .INF'
$InfFilePath = [string](Get-ChildItem -Path $ExtractDir -Filter $InfFileName -Recurse -File | Select-Object -ExpandProperty 'FullName')
$null = cmd /c ('pnputil.exe /add-driver "{0}" /install' -f $InfFilePath)
Write-Output -InputObject ('$? = "{0}", $LASTEXITCODE = "{1}".' -f $?.ToString(), $LASTEXITCODE)
# Check results
Write-Output -InputObject '# Checking if driver is found after install'
$InstalledDriver = [array](
Get-WindowsDriver -Online -All | Where-Object -FilterScript {$_.'ClassName' -eq 'AndroidUsbDeviceClass'}
)
if ($InstalledDriver.'Count' -ge 1) {
Write-Output -InputObject 'Found the driver.'
Exit 0
}
else {
Throw 'Did not find the driver.'
Exit 1
}
Maybe I'll add the to the main script later.

[Guide][MOD][THEME] Enable WhatsApp Desktop Dark Mode in MacOS

WhatsApp is set to receive the much-awaited dark mode on desktop platforms. According to a recent report by WABetaInfo, WhatsApp Web and WhatsApp for PC/Mac are currently being tested with a dark theme that paints the main screen and side panel in varying shades of dark grey. In recent builds the code for dark mode is available but there's no official option to enable it. So here's how can you enable it yourself.
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"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Enable dark mode in WhatsApp Desktop version of MacOS (Although it must be similar in windows client too)
PREREQUISITES
What things you need to install before starting up WhatsApp Desktop Application Homebrew Nodejs asar node module Installing section is just to install prerequisites if you already don't have them. Otherwise skip to Applying Dark Mode.
INSTALLING
Follow these Steps:
You need to install Whatsapp Desktop on your Mac(Download from OFFICIAL WEBSITE is suggested rather than app store version).
Open Terminal and Install Homebrew
Code:
$ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
This will install Homebrew on your Mac. To check the version type the following command.
Code:
$ brew -v
Install Nodejs using Homebrew
Code:
$ brew install node
If everything installed successfully then you can type in the following command in the terminal to check the Node and NPM version.
Code:
$ node -v
$ npm -v
Install asar node module globally
Code:
$ npm install -g asar
APPLYING DARK MODE
Go into the app’s directory and create a directory for our working
Code:
$ cd /Applications/WhatsApp.app/Contents/Resources
$ mkdir temp-darkmode
Unpack the app.asar file in the above directory using asar
Code:
$ asar extract app.asar temp-darkmode
Open directory temp-darkmode and insert the code
Code:
cd temp-darkmode
open index.html and edit
Code:
nano index.html
find body
HTML:
<body class="native darwin">
replace it with code below
HTML:
<body class="native darwin dark">
save the file, hit ctrl+x type y and enter
Pack the app.asar file,Go into the app’s directory
Code:
$ cd /Applications/WhatsApp.app/Contents/Resources
to pack type
Code:
$ sudo asar pack temp-darkmode app.asar
You are done
Source: Github

Run exe on Android with box + wine [Root]

1. First install 64-bit chroot Ubuntu/Debian on the phone with Linux Deploy
2. To enable multi-architecture support:
dpkg --add-architecture armhf
3. Update sources.list
sudo nano /etc/apt/sources.list
4. Install related kits :
sudo apt update
sudo apt install tigervnc*
sudo apt install git build-essential cmake wget gcc-arm-linux-gnueabihf
sudo apt install zenity:armhf libasound*:armhf libstdc++6:armhf mesa*:armhf #box86_dependencies
sudo apt install mesa* zenity* #box64_dependencies
5. Compile Box86 with parameters for Raspberry Pi 4
cd
git clone https://github.com/ptitSeb/box86
cd box86
mkdir build; cd build; cmake .. -DRPI4ARM64=1 -DARM_DYNAREC=ON -DCMAKE_BUILD_TYPE=RelWithDebInfo
make -j$(nproc)
sudo make install
cd
rm -rf box86
6. Compile Box64
git clone https://github.com/ptitSeb/box64.git
cd box64
mkdir build; cd build; cmake .. -DRPI4ARM64=1 -DARM_DYNAREC=ON -DCMAKE_BUILD_TYPE=RelWithDebInfo
make -j$(nproc)
sudo make install
cd
rm -rf box64
7. Wine :
mkdir wine
mkdir wine64
7.1. Download wine binaries:
wget https://www.playonlinux.com/wine/binaries/phoenicis/upstream-linux-x86/PlayOnLinux-wine-7.0-upstream-linux-x86.tar.gz
7.2. Download wine64 binaries:
wget https://www.playonlinux.com/wine/binaries/phoenicis/upstream-linux-amd64/PlayOnLinux-wine-6.17-upstream-linux-amd64.tar.gz
Extract both wine and wine64 in those two folders you had created before:
tar -xzvf PlayOnLinux-wine-7.0-upstream-linux-x86.tar.gz -C wine
tar -xzvf PlayOnLinux-wine-6.17-upstream-linux-amd64.tar.gz -C wine64
8.Add these lines to your /etc/profile:
export BOX86_PATH=~/wine/bin/
export BOX86_LD_LIBRARY_PATH=~/wine/lib/wine/i386-unix/:/lib/i386-linux-gnu:/lib/aarch64-linux-gnu/
export BOX64_PATH=~/wine64/bin/
export BOX64_LD_LIBRARY_PATH=~/wine64/lib/i386-unix/:~/wine64/lib/wine/x86_64-unix/:/lib/i386-linux-gnu/:/lib/x86_64-linux-gnu:/lib/aarch64-linux-gnu
Use $WINEPREFIX to separate execution environments ( temporary )
For example, if I want to execute 32-bit Box86 + Wine, the complete instructions are as follows:
export BOX86_PATH=/home/android/wine/bin/
export BOX86_LD_LIBRARY_PATH=/home/android/wine/lib/wine/i386-unix/:/lib/i386-linux-gnu:/lib/aarch64-linux-gnu/
box86 wine *.exe
In case of 64-bit Box64 + Wine64:
export WINEPREFIX=/home/android/.wine64
export WINEARCH=win64
export BOX64_PATH=/home/android/wine64/bin/
export BOX64_LD_LIBRARY_PATH=/home/android/wine64/lib/i386-unix/:~/wine64/lib/wine/x86_64-unix/:/lib/i386-linux-gnu/:/lib/x86_64-linux-gnu:/lib/aarch64-linux-gnu
box64 wine64 *.exe
To run wine32 without always deleting the prefix, put these in your .bashrc
export PATH=~/wine/bin:~/wine64/bin:$PATH
alias win32='WINEPREFIX=~/.wine32 WINEARCH=win32'

{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

Its working fine
But can u fix this ??

Check this git for one-line set up.

[ERROR] Unpack/Repack ROM SM-G930S (Samsung S7)

I downloaded the ROM from the link below:
[up_vnROM.net]_G930SKSU3ETJ1_G930SSKC3ETJ1_SKC_8.0.zip
drive.google.com
I use this project to unpack/repack on Ubuntu:
GitHub - anestisb/android-simg2img: Tool to convert Android sparse images to raw images
Tool to convert Android sparse images to raw images - GitHub - anestisb/android-simg2img: Tool to convert Android sparse images to raw images
github.com
I execute these commands:
lz4 system.img.lz4 system.img
[email protected]:~$ ./android-simg2img/simg2img system.img system.raw.img
[email protected]:~$ ./android-simg2img/img2simg system.raw.img system.new.img
Click to expand...
Click to collapse
Result file system.img loaded success, but file system.new.img received FAIL result when using Odin.
I noticed something unusual when comparing 2 files:
1. Check file info:
[email protected]:~$ file system*
system.img: Android sparse image, version: 1.0, Total of 1075200 4096-byte output blocks in 5625 input chunks.
system.new.img: Android sparse image, version: 1.0, Total of 1075200 4096-byte output blocks in 3469 input chunks.
system.raw.img: Linux rev 1.0 ext4 filesystem data, UUID=57f8f4bc-abf4-655f-bf67-946fc0f9f25b (extents)
Click to expand...
Click to collapse
2. Check simg_dump.py:
[email protected]:~$ ./android-simg2img/simg_dump.py system.img
simg_dump.py: system.img: The file header size was expected to be 28, but is 32.
[email protected]:~$ ./android-simg2img/simg_dump.py system.new.img
system.new.img: Total of 1075200 4096-byte output blocks in 3469 input chunks.
Click to expand...
Click to collapse
3. Open with 7z:
- File system.img
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
- File system.new.img
I used many tools: ext2simg, make_ext4fs to repack but it doesn't work. Looking forward to help.

quangnguyen7616 said:
I downloaded the ROM from the link below:
[up_vnROM.net]_G930SKSU3ETJ1_G930SSKC3ETJ1_SKC_8.0.zip
drive.google.com
I use this project to unpack/repack on Ubuntu:
GitHub - anestisb/android-simg2img: Tool to convert Android sparse images to raw images
Tool to convert Android sparse images to raw images - GitHub - anestisb/android-simg2img: Tool to convert Android sparse images to raw images
github.com
I execute these commands:
lz4 system.img.lz4 system.img
Result file system.img loaded success, but file system.new.img received FAIL result when using Odin.
I noticed something unusual when comparing 2 files:
1. Check file info:
2. Check simg_dump.py:
3. Open with 7z:
- File system.img
View attachment 5811597
- File system.new.img
View attachment 5811599
I used many tools: ext2simg, make_ext4fs to repack but it doesn't work. Looking forward to help.
Click to expand...
Click to collapse
you have too name the system_new.img the same name as stock one was and add back the .ext4 on the end you may also have to turn it back into a sparse image for odin to flash it successfully