Multiple Git User

This example is using gitbash on Windows.

Config file locations:

• C:\Users\<name>\.gitconfig
• C:\Users\<name>\path_to_github_project\.git\config

# Set up global user
$ git config --global user.name "Your_Name_001"
$ git config --global user.email "Your_Email_001"

# Set up local user and ssh key
$ cd /path_to_your_project
$ git config user.name "Your_Name_002"
$ git config user.email "Your_Email_002"
$ git config --local --add core.sshCommand 'ssh -i ~/.ssh/Your_SSH_Private_Key_002'

Done

Install spacemacs on windows

Steps for spacemacs installation

1. Download and install emacs on windows
1. https://www.gnu.org/software/emacs/download.html
2. Install the spacemacs config to appdata
1.  %USERPROFILE%\appdata\roaming\.emacs.d
2. https://www.spacemacs.org/#

  git clone https://github.com/syl20bnr/spacemacs C:\%USERPROFILE%\appdata\roaming\.emacs.d  

Steps for gtags and cscope

1. Get the binaries from web or
1. from one drive
2. Put those binaries to a folder in the windows environment path
3. Use it with the scrip: 
1. https://github.com/SulfredLee/DailyProblem/blob/master/devTools/prepareSpacemacsTags.bat
   

Cheat sheet compilation

 Bash

# Get space usage
du -chs ./* | sort -rh
du -kh --max-depth=1 | sort -rh

# find files
find [path] -name "lost+found" -prune -o -name "abc*.log.gz" -print0

 Cpp

# cpp debugs
## cpp heap memory checking
sudo cat /proc/18594/maps |grep heap # cat the process memory

55da5171a000-55da5178a000 rw-p 00000000 00:00 0 [heap]
55da5178a000-55db1c7c3000 rw-p 00000000 00:00 0 [heap]

55db1c7c3000-55da5178a000= 3,406,008,320 around 3G mem.

## Then dump the heap memory to a file(example from UAT):
dd if=/proc/29619/mem bs=1 skip=$((0x55db1c7c3000)) count=$((0x55db1c7c3000-0x55da5178a000)) status=none | strings > /tmp/heap_log.txt

 Docker Compose

# up and run in background
docker-compose up -d

# stop --- will keep the data
docker-compose stop

# shutdown --- will remove the data
docker-compose down -v

# check service environment variables
docker-compose run web env

# check config --- this can print the real value of the variable
docker-compose config