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sudo apt-get update
sudo apt-get install gnome-session gnome-shell-extension-manager gdm3
> select gdm3 in config window

sudo dpkg-reconfigure gdm3
> select gdm3 in config window
sudo reboot

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#!/bin/bash

# Split PDF files into multiple files with a specified number of pages.
# Usage: ./split_pdf.sh [increment] [directory]
#

increment=${1:-5}
directory=${2:-"."}

for file in "$directory"/*; do

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I have Lua script that manipulates cookies and headers based at GET parameters.

This script didnt work well at one location, strangely the ngx.var.args was empty with ordinary request.

The trick was that in location we have:

  location /x/ {
    header_filter_by_lua_file /etc/nginx/lua/referrer_cookie.lua;
    rewrite ^/x/(.*) /$1 break;
    try_files $uri /x/index.htm;

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#!/bin/bash

function fzf_container() {
    docker container ls -a | fzf -m | awk '{print $1}'
}
function fzf_running_container() {
    docker ps | fzf -m | awk '{print $1}'
}

function container() {

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I wanted to visual select code blocks inside markdown files, so I wrote this pretty simple script. Someone might find it useful. You can change the symbols as you like in searchpos, but this only works for multiple lines.

function! InsideTicks()
    call searchpos('`', 'b')
    normal! jv
    call searchpos('`', 'W')
 normal! be

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[Unit]
Description=Job that runs the python SimpleHTTPServer daemon
Documentation=man:SimpleHTTPServer(1)

[Service]
Type=simple
WorkingDirectory=/tmp/letsencrypt
ExecStart=/usr/bin/python -m SimpleHTTPServer 80 &
ExecStop=/bin/kill `/bin/ps aux | /bin/grep SimpleHTTPServer | /bin/grep -v grep | /usr/bin/awk '{ print $2 }'`

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#!/usr/bin/env python
"""
Very simple HTTP server in python.

Usage::
    ./dummy-web-server.py [<port>]

Send a GET request::
    curl http://localhost

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#Unix Toolbox

This document is a collection of Unix/Linux/BSD commands and tasks which are useful for IT work or for advanced users. This is a practical guide with concise explanations, however the reader is supposed to know what s/he is doing.

##Unix Toolbox revision 14.4

The latest version of this document can be found at http://cb.vu/unixtoolbox.xhtml. Replace .xhtml on the link with .pdf for the PDF version and with .book.pdf for the booklet version. On a duplex printer the booklet will create a small book ready to bind. This XHTML page can be converted into a nice PDF document with a CSS3 compliant application (see the script example). See also the about page.
Error reports and comments are m

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	  ---			-----------------			----
	  Map			Quick Explanation			Link
	  ---			-----------------			----
<	 <F1>	Causes Netrw to issue help
	 <cr>	Netrw will enter the directory or read the file      |netrw-cr|
	 <del>	Netrw will attempt to remove the file/directory      |netrw-del|
	 <c-h>	Edit file hiding list                                |netrw-ctrl-h|
	 <c-l>	Causes Netrw to refresh the directory listing        |netrw-ctrl-l|
	 <c-r>	Browse using a gvim server                           |netrw-ctrl-r|
	 <c-tab> Shrink/expand a netrw/explore window                |netrw-c-tab|

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Benchmark commands

Producer

Setup

bin/kafka-topics.sh \
  --zookeeper zookeeper.example.com:2181 \
  --create \