dyllanwli

from datetime import date, datetime

from contextlib import closing
import openai
import time
import math
import typing
import numpy as np
import pandas as pd
from tqsdk import tafunc, TqAuth, TqApi, TqSim, TqBacktest, TqAccount, TargetPosTask, BacktestFinished

dyllanwli

!curl -fsSL https://code-server.dev/install.sh | sh
!pip install -qqq pyngrok
from pyngrok import ngrok
url = ngrok.connect(port=9000)
print(url)
!nohup code-server --port 9000 --auth none &

dyllanwli

git branch -r | awk '{print $1}' | egrep -v -f /dev/fd/0 <(git branch -vv | grep origin) | awk '{print $1}' | xargs git branch -D

dyllanwli

iptables -P INPUT ACCEPT
iptables -P FORWARD ACCEPT
# https://serverfault.com/questions/200635/best-way-to-clear-all-iptables-rules
# To answer your question succinctly, no: there would not be any "leftover" rules after flushing every table. In the interest of being thorough however, you may want to set the policy for the built-in INPUT and FORWARD chains to ACCEPT, as well

iptables -P OUTPUT ACCEPT
iptables -t nat -F
iptables -t mangle -F
iptables -F
iptables -X

dyllanwli

alias activatejupyter='module load Anaconda/3-5.0.0.1 ; source activate jupyterlab_2.0.1'
alias rm='trash' # to avoid wrong delete 
# use \rm -rf is you still want to delete all file 


# make symbolic link to avoid disk file count usage
# ln -s <the short cut that you want to link (may not be exist)> <the real folder path(must exist)>

dyllanwli

# start mongodb with --replSet rs
# the rs means replica set name

# if MONGO_INITDB_ROOT_USERNAME was set, then use those init db root username and password


mongo -u <your user name> --authenticationDatabase admin -p <your passowrd>

rs.initiate()

dyllanwli

package org.doc2pdf.lambda;

import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

import javax.imageio.ImageIO;

dyllanwli

aws --version
# aws-cli/1.15.30 Python/3.6.5 Darwin/17.6.0 botocore/1.10.30

# move or rename bucket

aws s3 mb s3://[new-bucket]
aws s3 mv s3://old-bucket s3://new-bucket --recursive
# or
aws s3 mb s3://[new-bucket]
aws s3 sync s3://[old-bucket] s3://[new-bucket]

dyllanwli

# linux command . Copy a file one hundred times

for n in {001..100}; do
    cp file.jpg file-$n.jpg
done

dyllanwli

echo "hello world" > a.txt
soffice --headless --invisible --nodefault --nofirststartwizard \
    --nolockcheck --nologo --norestore --convert-to pdf --outdir $(pwd) a.txt
# to run multiple convert just use * as a selector