DavidPu

# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=816533
# start at server side(ssh)

 xpra start --no-daemon --xvfb="/usr/bin/Xvfb +extension  Composite -screen 0 3840x2560x24+32 -nolisten tcp -noreset" --start=/usr/bin/code

DavidPu

http://www.thegeekstuff.com/2009/09/unix-sed-tutorial-replace-text-inside-a-file-using-substitute-command/comment-page-1/

find pattern and insert after match in same line:

https://stackoverflow.com/questions/35252285/insert-text-with-sed-on-the-same-line-that-pattern-search sed 's/\blocalhost\b/& 192.168.25.50/' file

match pattern and replace the line:

sed -i "/export TOP=/c export TOP="${TOP}"" *.sh

match pattern and delete the line:

DavidPu

#!/bin/bash

set -euo pipefail
# readonly SCRIPT_DIR="$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")"
SCRIPT_DIR="$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")"

function process() {
python - << END_OF_PY_CODE

import os

DavidPu

Windows

move window between monitors

WIN+SHIFT+ARROW

Chrome

address bar

F6

switch tab

CTRL+TAB

DavidPu

#!/bin/bash
# download differnet python versions..
git clone https://github.com/pyenv/pyenv.git ~/.pyenv
export PATH=~/.pyenv/bin:$PATH
pyenv install 3.6.4
pyenv install 2.7.14

# create Python 3 environment:
export PYTHONHOME=~/.pyenv/versions/3.6.4
~/.pyenv/versions/3.6.4/bin/python -m venv <my_py_env_folder>

DavidPu

256bit AES-CBC

https://wiki.openssl.org/index.php/Enc

DavidPu

XTerm*faceName: Bitstream Vera Serif Mono
xterm*faceSize: 11
xterm*vt100*geometry: 80x60
xterm*saveLines: 16384
xterm*loginShell: true
xterm*charClass: 33:48,35:48,37:48,43:48,45-47:48,64:48,95:48,126:48
xterm*termName: xterm-color
xterm*eightBitInput: false

!BLK Cursor

DavidPu

       self.session = requests.Session()
        self.session.verify = True
        # get the cert:
        # openssl s_client -connect www.google.com:443 -showcerts > google.ca
        # apend the last cert into $(dirname $(which python))/../lib/python*/site-packages/certifi/cacert.pem

DavidPu

diff --git a/Modules/Setup.dist b/Modules/Setup
index e469d5e..3fea7df 100644
--- a/Modules/Setup
+++ b/Modules/Setup
@@ -387,3 +387,12 @@ _symtable symtablemodule.c

 # Another example -- the 'xxsubtype' module shows C-level subtyping in action
 xxsubtype xxsubtype.c
+
+SSL=$(srcdir)/openssl

DavidPu

set -xeuo pipefail
readonly SCRIPT_DIR="$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")"

SRC_ROOT=${SCRIPT_DIR}/src
mkdir -p ${SRC_ROOT}
cd ${SRC_ROOT}
git clone https://git.llvm.org/git/llvm.git
cd llvm/tools
git clone https://git.llvm.org/git/clang.git
cd clang/tools