1 Windows system

New laptop;

• Remove some Setting up the perfect Windows 10 Installation

Change permission;

• Refer to britec does not really work.
• Method 1: add Everyone
• Method 2: add a specifc user (Stewart Li) or a brand new laptop user
• Method 3: edit group policy (gpedit.msc) which does not exit on windows 10
• Method 4: whitespace
• My users folder is under my control now, but still cannot install R packages

Windows user name and R library path;

• Remove space when setting up windows user_name
• How to Change the Default Library in Rstudio
• My previous github solution no longer works.
• It is hard for me to change. Just leave it.

library(devtools)
find_rtools()

Sys.setenv(PATH = paste(Sys.getenv("PATH"), "C:/Rtools/bin/",
                        "C:/Rtools/mingw_64/bin", sep = ";"))
                        
Sys.setenv(BINPREF = "C:/Rtools/mingw_64/bin/")

Sys.getenv()[grep("LIB|PATH", names(Sys.getenv()))]

.fixdevtools <- function() { httr::set_config( httr::config( ssl_verifypeer = 0L ) ) }
.fixdevtools()

write("TMP = C:/tmp", file=file.path(Sys.getenv('R_USER'), '.Renviron'))

.libPaths()

Windows hotkeys (version 1809 or above);

• Refer to TechGumbo
• Windows powershell: properties, run as administrator,
• User name: $env:username
• Windows version: Windows key + R + winver
• Cloud clipboard: Windows key + V
• Snip: Windows key + Shift + S
• Microsoft virtual windows: Ctrl + windows key + arrow, windows key + Tab, windows key + F2 = PrtScr,
• Charmap, Realiability, Calibrate display color, Services

2 General tools

• Desktop rainmeter
• Messager rambox
• Messager keybase
• Software download ninite

• Window manager dvm

• Microsoft Fuzzy lookup
• Grammary Microsoft plugin

• Whiteboard Bamboo

• Screenshot Greenshot
• Clipboard Manager Ditto
• PDF Cutepdf
• PDF Scribus
• PPT slides

• Share html slides netlify

• Flowchart staruml
• Viso like edraw

• Flowchart yED

• Map Batchgeo
• Picture gimp
• Audio audacity
• Vedio OBS
• Animation blender

• Film resolve

3 Python envionment

Ubuntu installation;

• Activate developer mode on windows system
• Select linux on Turn on and off windows features
• Download ubuntu 18.4 from Microsoft store
• sudo apt update
• sudo apt upgrade
• VIM, Tmux and Python are included

Linux command line;

• bin folder contains all scripts and functions
• etc folder contains all configuration
• var folder contains caches
• Write scripts inside of .bashrc file,

• set | less (entire environment), ls /etc/bash*, ls /etc/bash*,

• sudo -s (don’t do it)
• Ctrl+h (., show all folders)
• su cindy (login as another person)
• chmod 755 hello (permission deny)
• sudo shutdown -h (-r) now, sudo shutdown -h 15, sudo shutdown -c,
  
• man nodejs, man man,
• ping www.goolge.com -c 3
• nano, Ctrl+x,
• less, more, cat, |,
• htop, sudo reboot, killall, clear, Ctrl+l, q, exit, ctrl+c,
• mkdir, rm -r mydir, cd ., .., ~, ./, pwd, cd &&,

• which, touch, cp, mv, ls -lart, ls -alh, ls -la, ls -a, ls -l, ll, ls, \ls, grep.

4 R environment

• For Microsoft Rtools
• For animation ImageMagick
• For PDF pandoc. It is included in new version package.
• For PDF MikTex. Use tinytex.

5 Summary