notes

uninsatll old kernrl

卸载 Ubuntu 的旧版本内核可以释放磁盘空间并优化系统性能。以下是几种常见方法：

1. 自动卸载未使用的内核：
   • 打开终端，运行以下命令查看已安装的内核列表：

     dpkg --list | grep linux-image
     

   • 然后运行以下命令自动卸载未使用的内核：

     sudo apt autoremove --purge
     

2. 手动删除特定内核：
   • 首先运行以下命令查看当前正在使用的内核版本：

     uname -r
     

   • 确保不要删除当前使用的内核。接着运行以下命令列出所有已安装的内核：

     dpkg --list | grep linux-image
     

   • 使用以下命令删除指定版本的内核（替换 x.x.x-x 为实际版本号）：

     sudo apt purge linux-image-x.x.x-x-generic
     

   • 删除后，更新 GRUB 引导加载程序：

     sudo update-grub
     

   • 最后，重新启动系统。
3. 清理残留的配置文件：
   • 使用以下命令清除所有状态为 rc 的包：

     sudo dpkg --purge $(dpkg -l | awk '/^rc/{print $2}')
     

在操作之前，请备份重要数据，并保留至少一个旧版本内核以防万一。如果需要更详细的指导，可以参考这里或这里。

希望这些方法对你有所帮助！如果有其他问题，随时告诉我。 😊

adb list package

adb shell pm list packages | findstr "xxx"
adb shell pm path com.xxx
adb pull xxxx ./

adb connect to MuMu emulator

adb connect 127.0.0.1:7555

Force switch Windows 11 insider to Release Preview

1. Ensure go back to release preview build

Methd1:
按Win+R输入regedit打开注册表

定位路径：HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsSelfHost\UI\Selection

修改UIBranch值为ReleasePreview

修改ContentType值为Mainline

修改Ring和UIRing值为Retail

定位路径：HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsSelfHost\Applicability

修改BranchName值为ReleasePreview

修改ContentType值为Mainline

修改Ring值为Retail

重启系统后检查设置-更新-Insider Program是否变为Release Preview

Method2. https://github.com/abbodi1406/offlineinsiderenroll

install vs2022 specific version

1. Locate the particular version in the Microsoft Update Catalog and download the installer.
2. Extract ChannelManifest.json from the installer. Should be about 90 KiB.
3. Upload it to a web server so that you have a URI it could be downloaded from, say https://example.org/ChannelManifest.json.
4. Go to C:\Program Files (x86)\Microsoft Visual Studio\Installer and open the command line there.
5. Run setup update –channelId VisualStudio.17.Release –productId Microsoft.VisualStudio.Product.Community –channelURI “https://example.org/ChannelManifest.json”. Feel free to add other parameters.

install xcode manually

requires

brew install unxip

1. visit: https://developer.apple.com/download/all/
2. search xcode 14.2
3. click .xip to download

xcode-14.2

# extract it
cd ~/Downloads/
xip -x ~/Downloads/Xcode_14.2.xip
mv Xcode.app /Applications/Xcode_14.2.app
sudo xcode-select -switch /Applications/Xcode_14.2.app

xcode-26.x

cd ~/Downloads/

# overwrite, please uninstall /Applications/Xcode.app manually first
unxip ~/Downloads/Xcode_26.2_Universal.xip /Applications/

# multi install
mkdir xcode-26.2-extract
unxip ~/Downloads/Xcode_26.2_Universal.xip /xcode-26.2-extract/
mv /xcode-26.2-extract/Xcode.app /Applications/Xcode_26.2.app

通过wsl2访问Linux物理磁盘

https://devblogs.microsoft.com/commandline/access-linux-filesystems-in-windows-and-wsl-2/

ubuntu nvdia driver

命令行安装ok https://blog.csdn.net/qq_34972053/article/details/127689332

chrome安装

vscode安装

缺x11

centos6.10 install gcc5

1. Add repo (important)

   vim /etc/yum.repos.d/devtools-4.repo
   # input follow content
   [hhorak-devtoolset-4-rebuild-bootstrap]
   name=Copr repo for devtoolset-4-rebuild-bootstrap owned by hhorak
   baseurl=https://copr-be.cloud.fedoraproject.org/results/hhorak/devtoolset-4-rebuild-bootstrap/epel-6-$basearch/
   type=rpm-md
   skip_if_unavailable=True
   gpgcheck=1
   gpgkey=https://copr-be.cloud.fedoraproject.org/results/hhorak/devtoolset-4-rebuild-bootstrap/pubkey.gpg
   repo_gpgcheck=0
   enabled=1
   enabled_metadata=1
   

2. install

   # install scl
   yum -y install centos-release-scl
   # install gcc-5 from devtoolset-4
   yum -y install devtoolset-4-gcc devtoolset-4-gcc-c++ devtoolset-4-binutils
   # enable temporary
   scl enable devtoolset-4 bash
   gcc -v
   Using built-in specs.
   COLLECT_GCC=gcc
   COLLECT_LTO_WRAPPER=/opt/rh/devtoolset-4/root/usr/libexec/gcc/x86_64-redhat-linux/5.2.1/lto-wrapper
   Target: x86_64-redhat-linux
   Configured with: ../configure --enable-bootstrap --enable-languages=c,c++,fortran,lto --prefix=/opt/rh/devtoolset-4/root/usr --mandir=/opt/rh/devtoolset-4/root/usr/share/man --infodir=/opt/rh/devtoolset-4/root/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-shared --enable-threads=posix --enable-checking=release --enable-multilib --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --enable-plugin --with-linker-hash-style=gnu --enable-initfini-array --disable-libgcj --with-default-libstdcxx-abi=gcc4-compatible --with-isl=/builddir/build/BUILD/gcc-5.2.1-20150902/obj-x86_64-redhat-linux/isl-install --enable-libmpx --with-mpc=/builddir/build/BUILD/gcc-5.2.1-20150902/obj-x86_64-redhat-linux/mpc-install --with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux
   Thread model: posix
   gcc version 5.2.1 20150902 (Red Hat 5.2.1-2) (GCC)
   

3. set gcc-5 as default

   echo "source /opt/rh/devtoolset-4/enable" >>/etc/profile
   

mac java

vim ~/.zshrc
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_291.jdk/Contents/Home
export CLASSPAHT=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$JAVA_HOME/bin:$PATH
source ~/.zshrc

git push

git push origin --tags -f

gsxt

http://www.gsxt.gov.cn/

jar recompress

cd xxx
jar -xf xxx.jar
mv xxx.jar ../
jar -cvfm xxx.jar META-INF/MANIFEST.MF  ./

clang arm predefininations

• clang -arch arm64 -E -dM - < /dev/null | grep arm

  #define __arm64 1
  #define __arm64__ 1
  

python mirrors

• http://npm.taobao.org/mirrors/python

centos7 install gitea

adduser -r -s /bin/bash -c 'Git Version Control' -U -m git

ios debug devices

https://www.jianshu.com/p/8c99cb119bb3

Upgrade brew with mirrors

Install: https://gitee.com/simdsoft/brew-install
Update: modify /usr/local/Homebrew/Library/Homebrew/install.sh
change homebrew-core repo to https://gitee.com/simdsoft/homebrew-core
https://www.jianshu.com/p/8a2ac505ff3e
https://www.jianshu.com/p/62f1b963baa6

Dump cmake builtin macros

get_cmake_property(_variableNames VARIABLES)
foreach (_variableName ${_variableNames})
  message(STATUS "${_variableName}=${${_variableName}}")
endforeach()

Get AAssetManager by ndk

https://stackoverflow.com/questions/58980171/using-aassetmanager-fromjava-within-plugin-not-directly-called-from-java-vm-cal

Gets expand/collapse icon size of TreeView

auto themeData = OpenThemeData(m_wndTreeView.GetSafeHwnd(), VSCLASS_TREEVIEW);
SIZE tvButtonSize = { 0 };
GetThemePartSize(themeData, NULL, TVP_GLYPH, GLPS_OPENED, NULL, TS_DRAW, &tvButtonSize);
CloseThemeData(themeData);

vs2019 cl.exe optimize options

https://docs.microsoft.com/en-us/cpp/build/reference/o1-o2-minimize-size-maximize-speed?view=vs-2019

Apple cert profile cache directory

~/Library/MobileDevice/Provisioning Profiles

Create Visual Studio 2022 offline installer

For C++ desktop development, run:

vs_community.exe --layout D:\softwares\2022 --add Microsoft.VisualStudio.Workload.NativeDesktop --includeRecommended --lang en-US

For .Net & C++ desktop development, run:

vs_community.exe --layout D:\softwares\2022 --add Microsoft.VisualStudio.Workload.NativeDesktop --add Microsoft.VisualStudio.Workload.ManagedDesktop --includeRecommended  --lang en-US

build apk, config noCompress file type at app/build.gradle

android {
    aaptOptions {
       noCompress 'mp3','ogg','wav','mp4','ttf','ttc'
    }
}

Build openal-soft dependencies for android platform

OS: Ubuntu 18.04.3 or install it with VMWare

install dep-tools

apt-get update
apt-get install gcc-multilib
apt-get install autoconf automake cmake libtool git

make-standalone-toolchain

prepare: cp /usr/bin/python3.6 /usr/bin/python

"$ANDROID_NDK/build/tools/make-standalone-toolchain.sh" --arch="arm" --platform="14" --stl=gnustl --install-dir="/opt/arm-standalone-toolchain" --verbose
"$ANDROID_NDK/build/tools/make-standalone-toolchain.sh" --arch="arm64" --platform="21" --stl=gnustl --install-dir="/opt/arm64-standalone-toolchain"  --verbose

Add standalone toolchain’s bin directory to PATH

export PATH=/opt/arm-standalone-toolchain/bin:$PATH  
export PATH=/opt/arm64-standalone-toolchain/bin:$PATH

strip symbols

remove static library debug symbol: arm-linux-androideabi-strip -g -S -d --strip-debug libogg.a -o libogg.a.s
remove dynamic library debug symbol: arm-linux-androideabi-strip libopenal.so -o libopenal.so.s

arm64-v8a: use aarch64-linux-android-strip

readthedocs dev

1. Install Python-3.7.3
2. Install Python Extensions: sphinx, sphinx_rtd_theme, sphinx_tabs: pip install sphinx sphinx_rtd_theme sphinx_tabs for vscode rst preview. For more detail, see: https://docs.restructuredtext.net/articles/prerequisites.html
3. Install Microsoft VS Code
4. Install Microsoft VS Code extension: reStructedText, just search rst

iOS xcodebuild export, xxx is not an ‘iOS App Store’ profile.

Add thinning=none to XXXExportOptions.plist

Use Visual Studio find chinese charactors regex expression

.*[\u4e00-\u9fa5]{1,}.*

Android Studio maven private server

alternative solution

• nexus: https://www.sonatype.com/nexus-repository-oss
• jfrog: https://jfrog.com/open-source

  nexus

  nexus /install
net start nexus
  package url format: http://127.0.0.1:9910/repository/maven-public/com/android/tools/lint/lint/26.2.1/lint-26.2.1.pom

  official

• google(): https://dl.google.com/dl/android/maven2/
• jcenter(): https://jcenter.bintray.com/
• mavenCentral(): https://repo.maven.apache.org/maven2/ or https://repo1.maven.org/maven2/ or http://central.maven.org/maven2/

  aliyun:

• google(): http://maven.aliyun.com/nexus/content/repositories/google
• jcenter(): http://maven.aliyun.com/nexus/content/repositories/jcenter

disable domain at hosts: repo.maven.apache.org 151.101.52.215

gradle:

https://services.gradle.org/distributions/

wireshak cap

Use WinPcap 4.1.3

global mobile games website:

https://apkpure.com/

show vctools version option

-Bv

git update submodule url

git submodule sync

git remove submodule

git rm –cached {submodule_path}

Chrome Latest Offline Download

ChromeStandaloneSetup64.exe

Unity3D Paths

Android

streamingAssetsPath: jar:file://${APK_PATH}!assets
persistentDataPath: external storage path, Android/data/${PackageName}/files
dataPath: ${APK_PATH}

Install latest cmake on non-win32 platform

apt install libssl-dev
wget https://github.com/Kitware/CMake/releases/download/v3.16.2/cmake-3.16.2.tar.gz -o ./cmake-3.16.2.tar.gz 
tar -xvf cmake-3.16.2.tar.gz
cd cmake-3.16.2
./configure
make
make install

Upgrade ubuntu

apt update && apt dist-upgrade
apt-get install screen
screen # Avoid ssh connection lost
do-release-upgrade -d

php xdebug

• Open phpForApache.ini
• Edit [xdebug] section

  zend_extension="path/to/php/zend_ext/php_xdebug-2.8.0-7.3-vc15-x86_64.dll"
  xdebug.remote_enable = 1
  xdebug.remote_autostart = 1
  xdebug.remote_handler=dbgp
  xdebug.remote_mode=req
  xdebug.romote_host=localhost
  xdebug.remote_port=9000
  

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