My Favorite Git Setting (for Ubunut)

1. Add the following in ~/.bash_profile

#! /bin/bash
#-----------------------------------------------------------------
# Bash autocompletion for Git

if [ -f ~/.git-completion.sh ]; then
   source ~/.git-completion.sh
fi

if [ -f ~/.git-prompt.sh ]; then
   source ~/.git-prompt.sh
fi

# PS1 may be replaced
 PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\][\w]\[\033[0m\]\[\033[1;36m\]$(__git_ps1)\[\033[0;33m\]\[\033[0m\]$ '
#PS1='\[\033[01;32m\]\u@\h\[\033[00m\]: \[\033[01;34m\]\w \[\033[0m\]\[\033[1;36m\] $(__git_ps1)\[\033[0;33m\]\[\033[0m\]$ '
#PS1='[\u@\h \W$(__git_ps1 " (%s)")]\$ '
#PS1="[\[\033[1;32m\]\w\[\033[0m\]] \[\033[0m\]\[\033[1;36m\]\$(git_branch)\[\033[0;33m\]\$(git_since_last_commit)\[\033[0m\]$ "
#PS1="[\[\033[1;32m\]\w\[\033[0m\]] \[\033[0m\]\[\033[1;33m\]\$(__git_ps1)\[\033[0;33m\]\[\033[0m\]$ "

2. Download  https://github.com/git/git/blob/master/contrib/completion/git-completion.bash 

and rename by git-completion.sh

3. download https://github.com/git/git/blob/master/contrib/completion/git-prompt.sh

$ mv git-completion.sh ~/.git-completion.sh
$ mv git-prompt.sh ~/.git-prompt.sh
$ chmod 775 .git-completion.sh
$ chmod 775 .git-prompt.sh

4. 

$ source ~/.bashrc

or

$ source ~/.bash_profile

Reference result

DEBUGGING ARDUINO SKETCHES WITH ATMEL STUDIO 7 (How to install hardware debug tool for ATMEL Studion 7)

Refer to :
1. http://www.solutions-cubed.com/electronic-design-blog/debugging-arduino-sketches-with-atmel-studio-7/

Arduino IDE (Windows app version vs conventional version)

1. The Arduino IDE from Windows app store do not have conventional directory. It's directory is on
   Windows hides windows store apps in c:/users/YourUserName/AppData(hidden folder)/Local/Packages
2. App version of Arduino IDE is not good to translate Arduino sketch file(*.ino) to ATMEL Studio 7 (*.cpp).
3. Suggestion: Removed app version of Arduino IDE and install conventional Arduino IDE from https://www.arduino.cc/en/main/software

AC6 STM32 Eclipse

Run System Workbench for STM32
1. load workspace
    PS: You may delete workspace if you need.

2. Open Projects from File System

3. Import Projects From File System or Archive

4. Build Code to check project is OK or not.

hikey linaro openssl/bio.h: no such file or directory

solution: install openssl

sudo apt install openssl libssl-dev

Refer to:
1. https://discuss.96boards.org/t/linux-support-issue-on-hikey-960/5143/18

Your system requires SMB2 or higher on Windows 10

Control Panel / Programs / Programs and Features / Turn Windows features on or off

Refer to:
1. https://www.guidingtech.com/solve-system-requires-smb2-error-windows-10/
2. https://www.thewindowsclub.com/system-requires-smb2-higher-error-windows-10

VT-x is not available for VirtualBox in Windows 10

1. rum cmd as administrator
2. cmd: bcdedit /set hypervisorlaunchtype off
3. cmd: dism.exe /Online /Disable-Feature:Microsoft-Hyper-V
4. cmd: Dism /Online /Cleanup-Image /RestoreHealth
5. cmd: sfc /scannow
6. Close cmd
7. run PowerShell as Administrator
8. PowerShell: Disable-WindowsOptionalFeature -Online -FeatureName Microsoft-Hyper-V-All
9. Restart














Refer to:
1. https://ugetfix.com/ask/how-to-disable-hyper-v-in-windows-10/

Passwordless SSH access

1. Check for existing SSH keys

# ls ~/.ssh

2. Generate new SSH keys

# ssh-keygen

3. Check for SSH keys

# ls ~/.ssh

4. Copy your pulic key to server

# ssh-copy-id <username>@<ip-address>

or

# cat ~/.ssh/id_rsa.pub | ssh <username>@<ip-address> 'mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys' 

Refer to:
1. https://www.raspberrypi.org/documentation/remote-access/ssh/passwordless.md
2. https://askubuntu.com/questions/46930/how-can-i-set-up-password-less-ssh-login

exFAT support on CentOS 7

yum install -y http://li.nux.ro/download/nux/dextop/el7/x86_64/nux-dextop-release-0-1.el7.nux.noarch.rpm

yum install exfat-utils fuse-exfat


Refer to: https://bitsanddragons.wordpress.com/2017/09/25/exfat-support-on-centos-7/

The default password of root for Centos 7.

There is no password. Password-based login as "root" is initially disabled. You need to login to to your default (admin) account using SSH and your key, and then run "sudo passwd root" to set a password on the "root" account. Otherwise you have to reset root password during reboot.