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command	description
ctrl + a	Goto BEGINNING of command line

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#!/usr/bin/env python3


#
# Nokia/Alcatel-Lucent router backup configuration tool
#
# Features:
# - Unpack/repack .cfg files generated from the backup and restore functionnality
#   in order to modify the full router configuration
# - Decrypt/encrypt the passwords/secret values present in the configuration

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#!/usr/bin/env bash

# Download metadata, modify these as your needs.
## The directory to save the downloaded files.
download_directory="/volume1/Download/EPUB"
## The website you want to visit.
calibre_site="http://soulseeker.myds.me:25788"
## The formats you want to download. We only download the first present format.
## All the formats should be upper case.
allow_formats=( EPUB MOBI AZW3 )

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#!/usr/bin/sudo bash
#
if [ "$EUID" -ne 0 ]
  then echo "Please run as root"
  exit
fi
systemctl enable runsunloginclient.service
systemctl start runsunloginclient.service
# change USERNAME to your current non-root username
sudo -u USERNAME /usr/local/sunlogin/bin/sunloginclient &

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0.In my 0th vps (for example Oracle Cloud free tier VPS, ubuntu 20.04, it allow me to create 2 free vps servers): 
    sudo apt install tailscale(ref: https://tailscale.com/kb/1039/install-ubuntu-2004/)
    sudo tailscale up    //copy the showed url and authorize google sign-in in the web  browser
    ip addr show tailscale0       //for example: 100.71.153.9

1. In my 1st vps(in china, for example my linux PC in my home):
     sudo apt install tailscale
     sudo sysctl net.ipv4.conf.all.forwarding=1
     sudo tailscale up --advertise-exit-node --accept-dns=false    //copy the showed url and authorize google sign-in in the web  browser
     //"--advertise-exit-node" to advertise this vps as exit node, "--accept-dns=false" to avoid global dns settings overwriting /etc/resolv.conf in exit node

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cd /system/app/
rm -rf Account
rm -rf card
rm -rf Drive
rm -rf Duo
rm -rf GooglePay
rm -rf Gmail2
rm -rf Maps
rm -rf Music2
rm -rf NVBackupUI

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Some of the Redis best practices content has moved

This content from this markdown file has moved a new, happier home where it can serve more people. Please check it out : https://docs.microsoft.com/azure/azure-cache-for-redis/cache-best-practices.

NOTE: Client specific guidance listed below is still valid and should still be considered. I will update this document once all content has been moved.

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https://www.armbian.com/pine64/
download Bionic server 5.4 : https://dl.armbian.com/pine64/Bionic_current
对应ubuntu bionic是ubuntu 18.04(cat /etc/os-release), 对应debian buster是debian 10(cat /etc/debian_version)

sudo apt install lightdm lightdm-gtk-greeter xfce4         #sudo apt install lightdm lightdm-gtk-greeter lxde
sudo vi /etc/lightdm/lightdm.conf
#[Seat:*]
#allow-guest=false
#user-session=xfce                      #user-session=LXDE        对应/usr/share/xsessions/里xfce.desktop和LXDE.desktop
sudo reboot      # or startxfce4

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#!/usr/bin/env python
# coding: utf-8

import pysubs2
import re
from stardict import DictCsv
# depend on https://github.com/skywind3000/ECDICT/

dict_filename="ecdict.csv"
sub_filename="01sub.srt"

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=================================pc lubuntu上, 2013年===========================================
#!/bin/sh

#chroot only for root user session
#pivot_root for whole system root directory changing

#sudo su
#mkdir /mnt/new_root    #must be 755 root:root, or else sudo won't work: unable to stat /etc/sudoers: Permission denied
#mkdir /mnt/root        #must be 755 root:root
#mkdir /mnt/rw          #must be 755 root:root