Pete Doherty ethagnawl

How to recover lost Python source code if it's still resident in-memory

I screwed up using git ("git checkout --" on the wrong file) and managed to delete the code I had just written... but it was still running in a process in a docker container. Here's how I got it back, using https://pypi.python.org/pypi/pyrasite/ and https://pypi.python.org/pypi/uncompyle6

Attach a shell to the docker container

Install GDB (needed by pyrasite)

apt-get update && apt-get install gdb

The i3-wm does not come with a keybinding to lock the screen or a preconfigured auto lockscreen. This gist describes how to setup both using i3lock and xautolock. i3lock is a minimalistic lockscreen and xautolock monitors mouse and keyboard activities to automatically lock the screen after a certain time of beiing inactive.

First get the tools if neccessary. E.g. sudo apt install i3lock xautolock.

To setup the keybinding Ctrl+Alt+l (last one is a lowercase L) to lock the screen append the following lines to the i3 configuration file located at ~/.config/i3/config.

# keybinding to lock screen

In this article, I will share some of my experience on installing NVIDIA driver and CUDA on Linux OS. Here I mainly use Ubuntu as example. Comments for CentOS/Fedora are also provided as much as I can.

	# tmux config file

	# the rest of your config file ...

	# This example creates a variable named `custom_pane_title` which will be
	# displayed if and only if it has been set -- in this case by by your
	# tmuxinator pane commands.
	# This feature doesn't seem to be documented, otherwise I'd provide a link.
	# I _believe_ this feature requires tmux >= 3.0
	set -g pane-border-format "#{pane_index}#{?@custom_pane_title,:#{@custom_pane_title},}:#{pane_title}"

	# https://www.postgresqltutorial.com/postgresql-indexes/postgresql-list-indexes/
	SELECT
	tablename,
	indexname,
	indexdef
	FROM
	pg_indexes
	WHERE
	schemaname = 'public'
	ORDER BY

	select pid as process_id,
	usename as username,
	datname as database_name,
	client_addr as client_address,
	application_name,
	backend_start,
	state,
	state_change
	from pg_stat_activity;

	[Unit]
	Description=Reverse SSH Tunnel
	After=network.target

	[Service]
	ExecStart=/usr/bin/ssh -N -R 27276:localhost:22 -o "ExitOnForwardFailure yes" server
	KillMode=process
	Restart=always

	[Install]

Pete Doherty ethagnawl

How to recover lost Python source code if it's still resident in-memory

Attach a shell to the docker container

Install GDB (needed by pyrasite)

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