DEV Community: Youngjoon Won

vim add characters

Youngjoon Won — Sat, 07 Jun 2025 03:18:54 +0000

add to the beginning of every line

:%s/^/pattern

add to the end of every line

:%s/$/pattern

python venv

Youngjoon Won — Thu, 04 Jul 2024 09:34:02 +0000

$ mkdir ~/venv
$ python3.11 -m venv ~/venv/py3-11
$ source ~/venv/py3-11/bin/activate
$ python3.11 -m pip install arcade
$ deactivate

gcc libs@mac using homebrew

Youngjoon Won — Wed, 29 May 2024 10:10:14 +0000

Installed on Mac Studio M2 Ultra (Sonoma):

brew install gcc@13
brew install openssl@3
brew install boost
brew install boost-build
brew install curl
brew install jsoncpp
brew install json-glib
brew install googletest
brew install gsl

cd cpp-jwt
cmake .

makefile flags config:

LIBOPENSSL_LIBS=-L/opt/homebrew/opt/openssl/lib
LIBOPENSSL_CFLAGS=-I/opt/homebrew/opt/openssl/include
LIBBOOST_LIBS=-L/opt/homebrew/opt/boost/lib
LIBBOOST_CFLAGS=-I/opt/homebrew/opt/boost/include
LIBCURL_LIBS=-L/opt/homebrew/opt/curl/lib
LIBCURL_CFLAGS=-I/opt/homebrew/opt/curl/include
LIBJSON_CFLAGS=-I/opt/homebrew/opt/jsoncpp/include

CC = g++-14

...
-lboost_system -lpthread -lssl -lcrypto -lcurl -latomic -std=c++14
...

wget examples

Youngjoon Won — Wed, 22 May 2024 02:04:43 +0000

download everything in a given directory

wget --recursive --no-parent https://example.com/

terminal recording - script

Youngjoon Won — Thu, 11 Apr 2024 11:58:10 +0000

for Mac

start
$ script -r

stop. file created: typescript
$ exit

replay
$ script -p typescript

python/nvm install in windows

Youngjoon Won — Thu, 11 Apr 2024 06:44:12 +0000

python in windows

open powershell from start menu

type python and continue install

python

python --version

install pip, refer to https://pip.pypa.io/en/stable/installation/

curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py

python get-pip.py

install requests lib

pip install requests

nvm in windows

download and install nvm.exe from https://github.com/coreybutler/nvm-windows/releases

reopen powershell with administrator mode (right click on powershell menu and select administrator)

nvm on
nvm install lts
nvm list

mine is node version 20.12.2

nvm use 20.12.2
cd C:\Program Files\nodejs

npx is under nodejs directory. now you can use it.

vim shortcuts

Youngjoon Won — Wed, 07 Feb 2024 01:43:13 +0000

NERDTree Refresh, press r

ctrl-w + //increase height
ctrl-w -
ctrl-w > //increase width
ctrl-w <

ctrl-w W //window up
ctrl-w r //window rotate

ctrl-w shift-n //vim term scroll, i to end

select shift-> //tab all
G //move to end of file

:term //open split terminal
:vert term
:sp //split panel horizontal
:vs //split panel vertical

//vundle install example

$ brew install cmake python go
$ cd ~/.vim/bundle/YouCompleteMe
$ python3 install.py --all

$ vim ~/.vimrc

//add Bundle 'Valloric/YouCompleteMe'
//add Plugin 'preservim/nerdtree'

$ vim

:PluginInstall

$ cat ~/.vimrc

" git clone https://github.com/gmarik/Vundle.vim.git ~/.vim/bundle/Vundle.vim
set nocompatible " required
filetype off " required
set backspace=indent,eol,start

" set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim
let python_highlight_all=1
syntax on
" syntax on
set nu
set encoding=utf-8
set tabstop=2
set shiftwidth=4

call vundle#begin()

" alternatively, pass a path where Vundle should install plugins
"call vundle#begin('~/some/path/here')

" let Vundle manage Vundle, required
Plugin 'gmarik/Vundle.vim'
Plugin 'vim-scripts/indentpython.vim'
Plugin 'vim-syntastic/syntastic'
Plugin 'nvie/vim-flake8'
Plugin 'preservim/nerdtree'

" Plugin 'Valloric/YouCompleteMe'
Bundle 'Valloric/YouCompleteMe'

" add all your plugins here (note older versions of Vundle
" used Bundle instead of Plugin)

" ...

" All of your Plugins must be added before the following line
call vundle#end() " required
filetype plugin indent on " required

ubuntu enable https

Youngjoon Won — Mon, 22 Jan 2024 06:23:24 +0000

$sudo a2enmod ssl
$sudo a2ensite default-ssl

modify /etc/apache2/sites-available/default-ssl.conf

$sudo systemctl restart apache2

check open ports:

$nc -zv young.hanyang.ac.kr 80
$netstat -tlnp
$nmap -sT hostname
$sudo lsof -nP -iTCP -sTCP:LISTEN

$sudo ufw status
$sudo ufw help

zsh config

Youngjoon Won — Fri, 29 Dec 2023 06:51:31 +0000

install xcode first

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

(echo; echo 'eval "$(/opt/homebrew/bin/brew shellenv)"') >> /Users/young/.zprofile
eval "$(/opt/homebrew/bin/brew shellenv)"

install oh-my-zsh

sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"

vim ~/.zshrc

plugins=(vi-mode)
alias rm="rm -i"
export PROMPT='${ret_status}%m/%{$fg[cyan]%}%c%{$reset_color%} $(git_prompt_info)'

brew install python3

Download https://www.python.org/downloads/release/python-2713/

touch .vimrc
vim .vimrc

syntax on
set nu

restart screen sharing@mac

Youngjoon Won — Fri, 01 Oct 2021 04:50:51 +0000

sudo launchctl unload /System/Library/LaunchDaemons/com.apple.screensharing.plist  

sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.screensharing.plist

httpd@mac

Youngjoon Won — Wed, 04 Aug 2021 01:15:18 +0000

brew install httpd

vim /usr/local/etc/httpd/httpd.conf
Listen 80
ServerName xxx.xxx.xxx.xxx:80

brew services start httpd

/usr/local/var/www

docker@mac

Youngjoon Won — Wed, 04 Aug 2021 00:48:24 +0000

brew install docker docker-toolbox docker-machine
brew services start docker-machine
docker-machine create --driver virtualbox default
docker-machine ls
docker-machine env default
eval $(docker-machine env default)
docker-machine stop default
brew services stop docker-machine

docker ps
docker container stop [CONTAINER ID]

docker stop $(docker ps -aq)
docker rm $(docker ps -aq)

docker images -a
docker rmi

docker build -t apachewww .
docker run -dit --name my-running-app -p 80:80 apachewww