Skip to content

Instantly share code, notes, and snippets.

View zommuter's full-sized avatar

Tobias Kienzler zommuter

View GitHub Profile
@sbz
sbz / hexdump.py
Created July 13, 2011 13:04
hexdump implementation in Python
def hexdump(src, length=16):
FILTER = ''.join([(len(repr(chr(x))) == 3) and chr(x) or '.' for x in range(256)])
lines = []
for c in xrange(0, len(src), length):
chars = src[c:c+length]
hex = ' '.join(["%02x" % ord(x) for x in chars])
printable = ''.join(["%s" % ((ord(x) <= 127 and FILTER[ord(x)]) or '.') for x in chars])
lines.append("%04x %-*s %s\n" % (c, length*3, hex, printable))
return ''.join(lines)
@masak
masak / explanation.md
Last active April 10, 2025 16:42
How is git commit sha1 formed

Ok, I geeked out, and this is probably more information than you need. But it completely answers the question. Sorry. ☺

Locally, I'm at this commit:

$ git show
commit d6cd1e2bd19e03a81132a23b2025920577f84e37
Author: jnthn <[email protected]>
Date:   Sun Apr 15 16:35:03 2012 +0200

When I added FIRST/NEXT/LAST, it was idiomatic but not quite so fast. This makes it faster. Another little bit of masak++'s program.

@MohamedAlaa
MohamedAlaa / tmux-cheatsheet.markdown
Last active May 7, 2025 23:53
tmux shortcuts & cheatsheet

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname
@paulodeleo
paulodeleo / .tmux.conf
Last active July 15, 2022 10:16
Tmux configuration to enable mouse scroll and mouse panel select, taken from: http://brainscraps.wikia.com/wiki/Extreme_Multitasking_with_tmux_and_PuTTY
# Make mouse useful in copy mode
setw -g mode-mouse on
# Allow mouse to select which pane to use
set -g mouse-select-pane on
# Allow mouse dragging to resize panes
set -g mouse-resize-pane on
# Allow mouse to select windows
@martijnvermaat
martijnvermaat / ssh-agent-forwarding-screen.md
Created December 21, 2013 15:06
SSH agent forwarding and screen

SSH agent forwarding and screen

When connecting to a remote server via SSH it is often convenient to use SSH agent forwarding so that you don't need a separate keypair on that server for connecting to further servers.

This is enabled by adding the

ForwardAgent yes

option to any of your Host entries in ~/.ssh/config (or alternatively with the -A option). Don't set this option in a wildcard Host * section since any user on the remote server that can bypass file permissions can now als use keys loaded in your SSH agent. So only use this with hosts you trust.

@wrouesnel
wrouesnel / .remote-backup-excludes.txt
Last active September 5, 2021 23:32
A script for performing a remote backup to another server using rsync and bup for versioning.
# this is an rsync-excludes format list of files to exclude.
@Zulko
Zulko / cubes_pyode_vapory.py
Last active February 16, 2025 12:05
3D cubes animation with PyODE and Vapory
"""
Physics simulation with PyODE followed by a (basic) rendering with Vapory
See the result here: http://i.imgur.com/TdhxwGz.gifv
Zulko 2014
This script is placed in the Public Domain (Licence Creative Commons 0)
"""
@pbugnion
pbugnion / ipython_notebook_in_git.md
Last active October 22, 2023 12:25
Keeping IPython notebooks under Git version control

This gist lets you keep IPython notebooks in git repositories. It tells git to ignore prompt numbers and program outputs when checking that a file has changed.

To use the script, follow the instructions given in the script's docstring.

For further details, read this blogpost.

The procedure outlined here is inspired by this answer on Stack Overflow.

@lsdr
lsdr / NEATEvolve.lua
Last active August 11, 2018 12:52
MarI/O: the script that learns how to play Mario Bros/Mario Kart
-- MarI/O by SethBling
-- Feel free to use this code, but please do not redistribute it.
-- Intended for use with the BizHawk emulator and Super Mario World or Super Mario Bros. ROM.
-- For SMW, make sure you have a save state named "DP1.state" at the beginning of a level,
-- and put a copy in both the Lua folder and the root directory of BizHawk.
if gameinfo.getromname() == "Super Mario World (USA)" then
Filename = "DP1.state"
ButtonNames = {
"A",
@doctaphred
doctaphred / ntfs-filenames.txt
Last active March 24, 2025 08:51
Invalid characters for Windows filenames
Information from https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file :
Use any character in the current code page for a name, including Unicode
characters and characters in the extended character set (128–255), except
for the following:
- The following reserved characters:
< (less than)
> (greater than)